@DATABASE StylusTracer.guide
## $VER: StylusTracer.guide 3.0 (11.Mar.95)
@FONT Topaz.font 11

@NODE Main "StylusTracer Help Table of Contents"

The @{" Project " link Project} Menu
	@{" Open... " link Open}
	@{" Save... " link Save}                               @{"  StylusTracer Overview   " link Overview}
	@{" Save As... " link SaveAs}                            @{" Customizing StylusTracer " link Config}
	@{" AutoTrace... " link Autotrace}
	@{" Close " link Close}
	@{" About... " link About}
	@{" Quit " link Quit}
				T@{b}echnical Support:@{ub}  If you need further
The @{" Process " link Process} Menu                 assistance, you can reach us below.
	@{" Undo " link Undo}                     Please mention your registration number.
	@{" Smooth " link Smooth}                   We reserve the right to refuse technical
	@{" Misc " link ProcMisc}                     support to non-registered users.
	@{" Remap " link Remap}
	@{" Convert " link Convert}

The @{" Misc " link Misc} Menu                    Stylus, Inc.
	@{" Help... " link Help}                  P.O. Box 1671
	@{" Active... " link Active}                Ft. Collins, CO   80522
	@{" Background... " link Background}            (303) 484-7321
	@{" Screen Mode... " link Screen_Mode}           Monday through Friday
	@{" Display Prefs... " link Display}         9:00 am to 5:00 pm MST
	@{" Save Settings " link SaveSettings}

The @{" User " link User} Menu and ARexx®
	@{" Rexxecute... " link Rexxecute}

The @{" Touch-Up Toolbox " link Toolbox}
	@{"  Zoom In   " link ZoomIn}@{"   Zoom Out  " link ZoomOut}
	@{"  Palette   " link Palette}@{" Eye Dropper " link EyeDropper}
	@{"    Crop    " link Crop}@{"   Polygon   " link Polygon}
	@{" Flood Fill " link Flood}@{"  Rectangle  " link Rectangle}
	@{"    Line    " link Line}@{"    Paint    " link Paint}
	@{" 1x1 Brush  " link Brushes}@{"  3x3 Brush  " link Brushes}
	@{" 5x5 Brush  " link Brushes}@{"  7x7 Brush  " link Brushes}

@ENDNODE


@NODE Overview
@TITLE "StylusTracer Overview"
@TOC Main
@PREV Main
@NEXT Config


@{u}Basic Steps for Image Processing and AutoTracing@{uu}

	1. @{" Load " link Open} the image.

	2. @{" Convert " link Convert} the image color model (if any of the True Color
	   processes are required).

	3. Set the @{" Background " link Background} color. (AutoTracing and some image-
	   processing are relative to the background color.)

	3. @{" Process " link Process} the image.

	4. Convert back to a trace-capable color model (if True Color
	   processing was required).

	5. Reset the background color (some processes may alter the back-
	   ground).

	6. @{" AutoTrace " link Autotrace} the image.


@{u}Stylustracer Overview@{uu}

	StylusTracer is a powerful program, with an array of features that
may at first seem daunting; nonetheless, autotracing simple images of only a
few colors can be as easy as loading the image, and tracing it with the
default settings.

	However, a bitmap image produced by a 600 DPI, 24-bit scanner is @{b}not@{ub}
a simple image.  Complex bitmaps often have many details that may simply
clutter a structured drawing that has been traced from it.  Isolated pixels
of color, dithering, and anti-aliasing (characteristics that may improve the
appearance of a bitmap) can just be distracting noise in a traced, struc-
tured drawing.  To cleanup these undesirable elements and distill your
bitmap image, StylusTracer has a full suite of image-processing and touch-up
tools.

	Images from standard IFF-ILBM resolutions to 24-bit ILBM and TIFF
resolutions can be loaded.  From these, StylusTracer can create structured
drawings with a maximum of 256 colors.  (Generally, you will find 256 colors
more than enough; additional colors are better added using the ProVector
gradient fill options.)

	StylusTracer can store a bitmap internally using four different
color models; as a black and white image, as a grey-scale image with 256
levels of grey, an indexed-color image with up to 256 colors, or as a
true-color image with over 16 million colors (24-bit).

	Certain functions of StylusTracer can only be performed when the
image is in a specific one of the above models.  For instance, an image can
not be traced in the True Color model, but must first be converted into one
of the other three models.  In contrast, most of the image processing
functions are only available if the image is in True Color or Greyscale.  If
a function is not available in the current mode, its menu item will be
ghosted.  (See the @{" Process/Convert  » " link Convert} submenu.)

	Once an image has been prepared for tracing with the image-
processing tools, StylusTracer has a wide range of tracing options, such as
Center-Line tracing, not found in lesser programs.  Center-Line tracing
differentiates between light and heavy (thick) lines in a bitmap, and
assigns appropriate line-weights to the lines when autotracing.  Other
tracers simply treat heavy lines as objects, and create outlines of them.
This results in many excess points in the finished drawing.

	Other options include objects, objects with holes (sub-polygons or
compound objects), thin lines, and bitmaps with up to 256 colors.  The ARexx
macro interface offers batch-processing, as well as many other possibilites.

	A wire-frame preview of the traced image is rendered as it traces.
Once you have a satisfactory trace, you can save it in IFF-DR2D and
Illustrator 88 formats.

@ENDNODE


@NODE Config
@TITLE "Customizing StylusTracer"
@TOC Main
@PREV Overview
@NEXT Project


@{b}@{u}Customizing StylusTracer@{uu}@{ub}

	StylusTracer can be customized to suit the requirements of the types
of bitmaps you most often trace.  There are two principal methods of doing
this: one is by modifying the ARexx startup macro, "StylusTracer.strx."  The
other is through standard Amiga tool types, set with the @{" Save Settings " link SaveSettings}
menu item or the @{b}Workbench/Information...@{ub} menu item.


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@ENDNODE


@NODE Project
@TITLE "Project"
@TOC Main
@PREV  Overview
@NEXT Open

@{b}@{u}Menu:	Project@{uu}@{ub}

	The Project menu offers various commands to @{" Open " link Open}, @{" Save " link Save},
@{" AutoTrace " link AutoTrace},  and @{" Close " link Close} bitmap files (projects).  You may also @{" Quit " link Quit}
StylusTracer via the Project menu.

@ENDNODE


@NODE Open
@TITLE "Open..."
@PREV Main
@NEXT Save

@{b}@{u}Menu Item:	Project/Open...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-O@{uu}

	Opens the file requester for loading an IFF-ILBM, TIFF (except
FAX-TIFF), or GIF bitmap-graphic file as the current image.  The file format
is automatically recognized.

	@{b}NOTE:  Importing of GIF files and certain TIFF files with LZW
compression has been disabled in response to recent patent claims by UNISYS.@{ub}


@ENDNODE


@NODE Save
@TITLE "Save..."
@PREV Open
@NEXT SaveAs


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@ENDNODE


@NODE SaveAs
@TITLE "Project/Save As..."
@PREV Save
@NEXT AutoTrace


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@ENDNODE


@NODE AutoTrace
@TITLE "AutoTrace..."
@PREV SaveAs
@NEXT Close

@{b}@{u}Menu Item:	Project/AutoTrace...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-T@{uu}

	Choosing the @{b}Project/AutoTrace...@{ub} menu item opens the AutoTrace
requester with various options for controlling the actual tracing process as
well as assigning a file name for the new structured graphic created from
the bitmap.

	@{b}Note:  AutoTracing can not be performed while a bitmap is in the
True Color mode.@{ub}  See the @{" Process/Convert " link Convert} sub-menu.

	When the AutoTrace requester opens the File text gadget (at the top
of the requester) will be active.  If you know the full directory path and
name of the file you wish to create, you can simply type the it into the
text gadget at this time.  If you are unsure of the path/file name, you may
select the File gadget to open the File requester and specify a directory
and file name.

	The column of check boxes labeled "Trace" determine what types of
objects will be traced.  If only the @{b}Objects@{ub} check box is selected, then the
trace output will only contain closed, filled, objects.  There will be no
simple lines (ie. open, unfilled objects); furthermore, the objects will not
contain transparent holes (sub-polygons) through which the background would
be visible.

	If @{b}Objects@{ub} and @{b}Holes@{ub} are checked, then the trace output will contain
objects with transparent holes (sub-polygons) through which the background
is visible.  However, there will be no lines.

	If only @{b}Lines@{ub} is checked, then the trace output will contain only
thin (single-pixel-wide) lines.  StylusTracer will not attempt to assign a
line weight to the lines.

	If @{b}Objects@{ub} and @{b}Lines@{ub} are selected, then the trace output will
contain closed, filled, objects; and, center lines (ie. StylusTracer will
try to assign line weights to heavy lines).  However, objects will not
contain transparent holes (sub-polygons) through which the background would
be visible.

	If all three are selected, Objects with Holes, and Center lines will
be traced.  Note that some combinations of these check boxes do not make
sense (for instance Lines & Holes, or Holes only); these combinations will
not be permitted.

	The set of radio buttons labeled "Smoothing" determine what type of
smoothing StylusTracer will apply to a bitmap.  If @{b}Curves@{ub} is selected,
StylusTracer will attempt to match the best combination of straight lines
and curves needed to accurately represent lines in the bitmap.  If @{b}Lines@{ub} is
selected, lines of pixels will be smoothed into straight lines, but no curve
fitting will be attempted.  If @{b}None@{ub} is selected, the lines of the trace will
follow the exact ouline of the pixels of the bitmap.  This will produce a
very jagged structured drawing, but it can be useful occasionally.

	The set of radio buttons labeled "Output" determine the format of
the finished, traced, file.  If @{b}IFF-DR2D@{ub} is selected, the file will be in
the Amiga® standard, IFF-DR2D structured-drawing format.  If @{b}AI EPS@{ub} is
selected, the file will be in Adobe Illustrator(TM) Encapsulated
PostScript®.

	The values of the four numeric gadgets in the lower portion of the
requester determine the accuracy of the trace.  No other autotracing program
has the accuracy and efficiency of StylusTracer; nor, does any other
autotracer give the user as much control over the process as StylusTracer.
These gadgets are set to reliable defaults for average bitmap images, but
some bitmaps may trace more accurately and efficiently at different
settings.  With other bitmaps, you may wish to sacrifice some accuracy in
favor of a simpler traced drawing with fewer points; with yet others, you
may wish the opposite, to sacrifice speed and simplicity for maximum
accuracy in the traced drawing.

	 The values of the @{b}Line Fit@{ub} and @{b}Curve Fit@{ub} text gadgets are given as
pixels from the ideal line; fractional values (ie. 1.5 pixels) are accepted.
If a straight line will not fit within the Line Fit limit, StylusTracer will
try to fit a curve to the line.  If a single spline will not describe the
line without exceeding the @{b}Curve Fit@{ub}, more and smaller splines will be used.
The smaller the values of these two settings, the more accurate the trace.
However, smaller values also produce more complex objects, or paths;
possibly with more points than some PostScript Interpreters (or ProVector)
can handle. (For instance, the Raster Image Processor, or RIP, in the
original Apple LaserWriter is limited to 1,500 points in a path.)  Also,
setting the tracing accuracy too high can create more points than are really
needed to accurately represent the image being traced.

	The value of the @{b}Break Angle@{ub} numeric gadget represents the angle
formed by the extension of the first line segment through its last point,
and the next line segment.

	Generally (this is somewhat dependent upon the image), the larger
the @{b}Break Angle@{ub} value, the more curves are used to represent the line, and
the smoother the transition between individual splines.

	A @{b}Break Angle@{ub} value of 0 (zero) turns off curve-fitting altogether;
the trace will be composed entirely of straight lines.  Thus, either too
large or too small a @{b}Break Angle@{ub} value may create unnecessary points in the
drawing.

	Again, there is the possibility of creating object paths that exceed
the capabilities of software or hardware that ultimately must image these
files, so you should consider the possible trade-offs before setting the
Trace Options at too high a resolution.

	You may wish to deliberately lower the accuracy of the AutoTrace
options to simplify your tracing by eliminating excess points and
distracting details.

	The @{b}Min size@{ub} text gadget specifies the diameter in pixels of the
smallest object StylusTracer will trace.  Smaller areas of color will be
ignored.  This value can be used to filter out many superfluous objects that
can clutter an image.  The default value is 1.5.  (Fractions of a pixel are
accepted.)

	You may type into the @{b}Line Fit@{ub} gadget, then press the @{b}Return@{ub} or @{b}Tab@{ub}
keys to advance to the other gadgets.  Alternatively, you may set all the
values with the mouse by clicking the @{b}+@{ub} and @{b}-@{ub} boxes to the right of the
numeric gadgets, incrementing them as desired.

	Finally, if the @{b}Preview@{ub} box is checked, the outline of the trace
will be superimposed over the bitmap image as it is calculated.  Straight
line and curve (Bezier) anchor points will be highlighted, but intermediate
control points of curves will not.

@ENDNODE


@NODE Close
@TITLE "Close"
@PREV AutoTrace
@NEXT Quit


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@ENDNODE


@NODE About
@TITLE "Project/About..."
@PREV Close
@NEXT Quit


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@ENDNODE


@NODE Quit
@TITLE "Quit"
@PREV Close
@NEXT Process


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@ENDNODE


@NODE Process
@TITLE "The Process Menu Items"
@PREV  Main
@NEXT Smooth

@{b}@{u}Menu:	Process@{uu}@{ub}

	The various image-processing effects of the @{b}Process@{ub} menu allow you
to distill your image to its important details.

	A @{" Summary " link Summary } of Image Processing Commands is available.  The summary
is designed to help you decide which process is appropriate for a given
image.

	Many of the operations of StylusTracer require that the image first
be converted to a particular internal representation before it can be
operated upon.  When menu items are not available, they will be ghosted.
See the @{" Convert  » " link Convert } submenu for more information.


@{u}The Process Menu Items@{uu}

	@{" Undo " link Undo}
	@{" Smooth » " link Smooth}
	@{" Misc » " link ProcMisc}
	@{" Remap » " link Remap}
	@{" Convert » " link Convert}

@ENDNODE


@NODE Undo
@TITLE "Process/Undo"
@TOC Process
@PREV Process
@NEXT Smooth

@{b}@{u}Menu Item:	Process/Undo@{uu}@{ub}

@{u}Command Key:	Right_Amiga-U@{uu}

	The @{b}Process/Undo Menu Item...@{ub} allows you to restore the state of the
bitmap prior to the most recent change (either through Process menu or
Toolbox operations).  Choosing Undo again, will Redo the change.

	Depending upon the size and number of colors of the currently loaded
bitmap, @{b}Undo@{ub} may require large amounts of memory!  It may be disabled with
the @{" Misc/Display Prefs... " link Display} menu item.

@ENDNODE


@NODE Smooth
@TITLE "The Process/Smooth Submenu"
@TOC Process
@PREV Process
@NEXT ProcMisc

@{b}@{u}Submenu:	Process/Smooth   »@{uu}@{ub}

	@{" Average... " link Average}
	@{" Median... " link Median}
	@{" Blur... " link Blur}
	@{" Gradient... " link Gradient}
	@{" Region... " link Region}
	@{" Minimum... " link Minimum}
	@{" Maximun... " link Maximum}

@ENDNODE


@NODE Average
@TITLE "Process/Smooth/Average..."
@TOC Smooth
@PREV Smooth
@NEXT Median

@{b}@{u}Menu Item:	Process/Smooth/Average...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-A@{uu}

	The @{u}Process/Smooth/Average...@{uu} menu item smooths the image by
replacing each pixel with the average (Average = Mean) of the width-by-
height area surrounding the pixel.  The process is repeated the specified
number of times.  This is a nice, fast smoothing operation, but it tends to
excessively blur things.  Nonetheless, in 3x3-5x5 matrices, it is useful for
de-dithering gently dithered images.


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@ENDNODE


@NODE Median
@TITLE "Process/Smooth/Median..."
@TOC Smooth
@PREV Average
@NEXT Blur

@{b}@{u}Menu Item:	Process/Smooth/Median...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-M@{uu}

	The @{b}Process/Smooth/Median...@{ub} menu item can be particularly useful
for consolidating small, extraneous clumps of pixels into larger color
contours (it clears up the speckled appearance of some bitmaps).  Obviously,
it is also useful for de-dithering.  It does tend to eliminate small
features, thin lines, sharp corners, and isolated pixels.  With 3x3-5x5
matrices, it is a standard smoothing tool for removing noise from an image.

	@{b}Median Smoothing@{ub} with a @{b}Width@{ub} of 1 and a @{b}Height@{ub} of 5 is useful for
cleaning up the time-base jitter in images captured from un-corrected VCR
input.


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@ENDNODE


@NODE Blur
@TITLE "Process/Smooth/Blur..."
@TOC Smooth
@PREV Median
@NEXT Gradient

@{b}@{u}Menu Item:	Process/Smooth/Blur...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Smooth/Blur...@{ub} menu item opens a requester, with @{b}Radius@{ub}
and @{b}Repeat@{ub} text gadgets.  The @{b}Radius@{ub} value is the radius (in pixels) of the
area of the bitmap surrounding a given pixel that the pixel is compared to
during processing.

	The @{b}Repeat@{ub} value is the number of times you wish the process to be
repeated.

	Blur is useful for de-dithering heavily dithered bitmaps, but as its
name implies, it may tend to blur the image.

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	@{b}Blur@{ub} is actually a form of Gaussian smooth, which can be a very coarse
smoothing operation.  However, the ability to accept fractional pixel values
allows for more subtle control, with the result that @{b}Blur@{ub} will not blur as
much as @{b}Average@{ub} smoothing at small radii.

@ENDNODE


@NODE Gradient
@TITLE "Process/Smooth/Gradient..."
@TOC Smooth
@PREV Blur
@NEXT Region

@{b}@{u}Menu Item:	Process/Smooth/Gradient...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Smooth/Gradient...@{ub} menu item performs a fairly low-key
smoothing algorithm, applied the specified number of times.  It tries to
avoid smoothing across sharp gradients in the image (hence the name).  It is
useful for removing noise without loss of fine details.

	This is a fair amount slower than the convolution-based smoothing
algorithms (ie. @{b}Average, Median, Blur,@{ub} etc.).

@ENDNODE


@NODE Region
@TITLE "Process/Smooth/Region..."
@TOC Smooth
@PREV Gradient
@NEXT Minimum

@{b}@{u}Menu Item:	Process/Smooth/Region...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Smooth/Region...@{ub} menu item is similar in concept to
@{b}GradSmooth@{ub}, but it is a more aggressive smoothing algorithm.  It still tries
to avoid smoothing across sharp gradients, but is more likely to lose fine
details.  It is very slow.

	This process can be useful in converting anti-aliased areas of color
into distinct color boundaries for cleaner tracing.  It has a tendency to
organize finely dithered regions into small facet-like areas that may be
consolidated with the @{b}Misc/Posterize...@{ub} menu item.

	@{b}Region Smooth@{ub} does not have any signicant effect beyond four or five
iterations.  However, it usually requires two or more iterations to get
satisfactory results.

@ENDNODE


@NODE Minimum
@TITLE "Process/Smooth/Minimum..."
@TOC Smooth
@PREV Region
@NEXT Maximum

@{b}@{u}Menu Item:	Process/Smooth/Minimum...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Smooth/Minimum...@{ub} menu item replaces each pixel in the
image with the minimum value of all pixels in a sample area around the pixel.

	Choosing @{b}Process/Smooth/Minimum...@{ub} opens a requester with three
sliders, @{b}Width, Height,@{ub} and @{b}Repeat.@{ub}  The @{b}Width@{ub} and @{b}Height@{ub} sliders are used
to specify the width and height in pixels of the sample area (or matrix)
around a pixel to be used for determining the minimum.

	The process will be performed the number of times specified by the
@{b}Repeat@{ub} slider to a maximum of 15 repetitions.  If desired, it may be
repeated additional times by reselecting the @{b}Process/Smooth/Minimum...@{ub} menu
item.

	Minimum smoothing can be used in conjunction with Maximum smoothing
to cleanup small bright areas or dark areas in a Black & White image.  If
Minimum smoothing is used, followed by Maximum smoothing, small bright areas
will be removed.  If Maximum smoothing is used first, followed by Minimum
smoothing, small dark areas will be removed.

@ENDNODE


@NODE Maximum
@TITLE "Process/Smooth/Maximum..."
@TOC Smooth
@PREV Minimum
@NEXT ProcMisc

@{b}@{u}Menu Item:	Process/Smooth/Maximum...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Smooth/Maximum...@{ub} menu item opens a requester identical
to that of @{b}Process/Smooth/Minimum...@{ub}, but performs the opposite process.  It
replaces each pixel with the maximum value of all pixels in a sample area
around the pixel.

	The @{b}Width@{ub} and @{b}Height@{ub} sliders are used to specify the width and
height in pixels of the sample area (or matrix) around a pixel to be used
for determining the maximum.

	The process will be performed the number of times specified by the
@{b}Repeat@{ub} slider to a maximum of 15 repetitions.  If desired, it may be
repeated additional times by reselecting the @{b}Process/Smooth/Maximum...@{ub} menu
item.

	Maximum smoothing can be used in conjunction with Minimum smoothing
to cleanup small bright areas or dark areas in a Black & White image.  If
Minimum smoothing is used, followed by Maximum smoothing, small bright areas
will be removed.  If Maximum smoothing is used first, followed by Minimum
smoothing, small dark areas will be removed.

@ENDNODE


@NODE ProcMisc
@TITLE "Process/Misc   »"
@TOC Process
@PREV Smooth
@NEXT Remap

@{b}@{u}Submenu:	Process/Misc   »@{uu}@{ub}

	@{" Posterize... " link Posterize}
	@{" Remove Isolated... " link Remove_Iso}
	@{" Sharpen... " link Sharpen}
	@{" Edge Detect " link Edge_Detect}
	@{" Thin... " link Thin}
	@{" Scale... " link Scale}

@ENDNODE


@NODE Posterize
@TITLE "Process/Misc/Posterize..."
@TOC ProcMisc
@PREV ProcMisc
@NEXT Remove_Iso

@{b}@{u}Menu Item:	Process/Misc/Posterize...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Misc/Posterize...@{ub} menu item attempts to create regions
of constant color in the image, where each region consists of groups of
pixels whose intensities differ from each other by no more than the value of
the @{b}Difference@{ub} numeric gadget.  The operation is fairly quick, creating a
"posterized" effect.  Permissible values range from 1-127.

	This process is very useful after a @{b}Region Smooth;@{ub} it consolidates
the facet-like artifacts characteristic of @{b}Region Smooth.@{ub}


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@ENDNODE


@NODE Remove_Iso
@TITLE "Process/Misc/Remove Isolated"
@TOC ProcMisc
@PREV Posterize
@NEXT Sharpen

@{b}@{u}Menu Item:	Process/Misc/Remove Isolated@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	Choosing the @{b}Process/Misc/Remove Isolated@{ub} menu item removes isolated
pixels and replaces them with the median of the eight surrounding pixels.
This is a fairly quick and very useful process, since single pixels of
isolated color rarely represent details important to the final traced image.

	Note that many of the other processes can actually create isolated
pixels, so it is usually best to do @{b}Remove Isolated@{ub} as the last step before
actual tracing (after you convert to Indexed, GreyScale, or B&W; @{b}Remove
Isolated@{ub} is less effective in Full Color mode).


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@ENDNODE


@NODE Sharpen
@TITLE "Process/Misc/Sharpen..."
@TOC ProcMisc
@PREV Remove_Iso
@NEXT Edge_Detect

@{b}@{u}Menu Item:	Process/Misc/Sharpen...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Misc/Sharpen...@{ub} menu item applies an unsharp mask to the
image.  This can bring out subtle features in the image.  It is not very
useful for autotracing objects, but may be useful in conjunction with
@{" Process/Misc/Edge Detect " link Edge_Detect}, @{" Process/Misc/Thin " link Thin} and the @{" Lines " link Autotrace} only
tracing option in the @{" AutoTrace " link AutoTrace} requester.

	Choosing @{b}Process/Misc/Sharpen...@{ub} opens a requester with a single
text gadget for specifying the Sharpen Factor.  The higher the @{b}Factor@{ub} value,
the @{b}lower@{ub} the amount of sharpening done.  The practical range of values is 1
to 255; larger values will have negligible effect.

@ENDNODE


@NODE Edge_Detect
@TITLE "Process/Misc/Edge Detect..."
@TOC ProcMisc
@PREV Sharpen
@NEXT Thin

@{b}@{u}Menu Item:	Process/Misc/Edge Detect@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Misc/Edge Detect@{ub} menu item reduces an image to the edges
(lines) which define its objects.  That is, it detects the edges of the
color contours in an image; in effect, converting it into an bitmapped,
outline drawing.

@ENDNODE


@NODE Thin
@TITLE "Process/Misc/Thin..."
@TOC ProcMisc
@PREV Edge_Detect
@NEXT Scale

@{b}@{u}Menu Item:	Process/Misc/Thin...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Misc/Thin....@{ub} menu item thins thick objects while
leaving thin objects intact.  It removes one pixel from either side of an
object with each iteration.  The pixels are replaced with the current
background color.  It will not remove pixels where the object is only 1
pixel wide.

	The process maybe repeated a specified number of times.  Enough
iterations can reduce an image to single-pixel lines.

@ENDNODE


@NODE Scale
@TITLE "Process/Misc/Scale..."
@TOC ProcMisc
@PREV Thin
@NEXT Remap

@{b}@{u}Menu Item:	Process/Misc/Scale...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Misc/Scale...@{ub} menu item resizes a bitmap to a specified
pixel width and height.  The image may be enlarged, shrunk or distorted with
this command.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Remap
@TITLE "Process/Remap   »"
@TOC Process
@PREV ProcMisc
@NEXT Convert

@{b}@{u}Submenu:	Process/Remap   »@{uu}@{ub}

	@{" Invert " link Invert}
	@{" Strip Bits... " link Strip_Bits}
	@{" Brightness... " link Brightness}
	@{" Contrast... " link Contrast}
	@{" Gamma... " link Gamma}

@ENDNODE


@NODE Invert
@TITLE "Process/Remap/Invert"
@TOC Remap
@PREV Remap
@NEXT Brightness

@{b}@{u}Menu Item:	Process/Remap/Invert@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Remap/Invert@{ub} menu item replaces the image with its
inverse (ie. black changes to white, white to black, red to cyan, etc.).

@ENDNODE


@NODE Strip_Bits
@TITLE "Process/Remap/Strip Bits..."
@TOC ProcMisc
@PREV Remove_Iso
@NEXT Brightness

@{b}@{u}Menu Item:	Process/Remap/Strip Bits...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Remap/Strip Bits...@{ub} menu item strips the specified
number of bits of color precision (bit-planes) from the current image.

	This is a fast way of reducing the number of colors in an image.
However, the bit-planes are arbitrarily stripped, rather than remapping the
pixels to the nearest approximation of the color in the lower resolution.
Thus, you may find that using the Process/Convert/@{" Indexed... " link Indexed} menu item will
give more desirable results.

@ENDNODE


@NODE Brightness
@TITLE "Process/Remap/Brightness..."
@TOC Remap
@PREV Invert
@NEXT Contrast

@{b}@{u}Menu Item:	Process/Remap/Brightness...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Remap/Brightness...@{ub} menu item increases or decreases the
brightness of the image by the amount you specify in its numeric gadet (a
positive amount increases the brightness; a negative amount decreases it).

	The value may range from 0 to 255.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Contrast
@TITLE "Process/Remap/Contrast..."
@TOC Remap
@PREV Brightness
@NEXT Gamma

@{b}@{u}Menu Item:	Process/Remap/Contrast...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Remap/Contrast...@{ub} menu item increases or decreases the
contrast of the image by the amount that you specify in the requester's
numeric gadget.  A positive amount increases contrast; a negative amount
decreases contrast.

	The value may range from -127 to 127.  Contrast 127 in a monochrome
image forces to B&W.  However, generally, the most useful values will be in
the range of -63 to 63 (-50% to 50%).

@ENDNODE


@NODE Gamma
@TITLE "Process/Remap/Gamma..."
@TOC Remap
@PREV Contrast
@NEXT Convert

@{b}@{u}Menu Item:	Process/Remap/Gamma...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Process/Remap/Gamma...@{ub} menu item... increases or decreases the
gamma correction (gamma brightness) of the image by the amount you specify
in its numeric gadget.  Values greater than 1 increase the brightness;
values less than 1 decrease brightness.  The image tends to wash out quickly
with values over 3.

	Gamma correction is a way of changing the brightness of a picture
that is perceptually correct.  That is, it increases (or decreases)
brightness exponentially, the way the human eye perceives it.

/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Convert
@TITLE "Process/Convert   »"
@TOC Process
@PREV Gamma
@NEXT BW

@{b}@{u}Submenu:	Process/Convert   »@{uu}@{ub}

	StylusTracer may use any of the following four color models for its
internal representation (ie. how the bitmap is stored in system memory) of
the image being processed:  Black & White, Greyscale, Indexed, or Full Color
(24-bit).  Some color models are more appropriate for certain operations;
some models will not allow certain processes or commands.  If a command is
not available with the current color model, its menu item will be ghosted.

	Most processes compare the respective Red, Green, and Blue values
(RGB channels) of pixels in the bitmap; and thus, must be converted to the
Full Color(24-bit) state.  Other operations compare the relative intensities
of pixels, and require one of the other color models.  All of the conversion
operations operate on the pixel intensities.

	In general, indexed images must be converted to either Greyscale or
Full Color before most processes can be performed on them.  Indexed and
Black & White images are limited to the @{b}Remove Isolated, Thin,@{ub} and @{b}Invert@{ub}
commands.  Full Color images must be converted to one of the other three
models before tracing.


@{u}The Convert Sub-Menu Items@{uu}

	@{" Black+White... " link BW}
	@{" Greyscale " link Grey}
	@{" Indexed... " link Indexed}
	@{" Full Color " link Full_Color}

@ENDNODE


@NODE BW
@TITLE "Process/Convert/Black+White..."
@TOC Convert
@PREV Convert
@NEXT Grey

@{b}@{u}Menu Item:	Process/Convert/Black+White...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-B@{uu}

	The @{b}Process/Convert/Black+White...@{ub} menu item converts the current
image to a black-and-white image.

	Choosing this menu item opens a small requester with a @{b}Comparison@{ub}
cycle gadget and a numeric gadget.  The cycle gadget permits you to specify
one of six Comparisons:  @{b}Greater or equal, Greater than, Not equal to, Less
than, Less or equal, Equal to.@{ub}

	The intensity of each pixel is compared to the value in the numeric
gadget, using the comparison specified by the cycle gadget.  If the
comparison is true, the pixel is changed to color number 1.  If it is false,
it is changed to color number 0.  The value of the numeric gadget may range
from 0-255.

	Color number 1 is always white, and color number 0 is black.  Thus,
given default settings of @{b}Greater or equal,@{ub} and 127, and a 256 level
greyscale image, all of the greys with an intensity of 127 or greater, will
become white, while all of the greys less than that value would become black.

	Both tracing and limited processing operations are possible in this
mode.  Note that it requires only one eight of the memory required to
maintain the image as an indexed or greyscale image.

@ENDNODE


@NODE Grey
@TITLE "Process/Convert/Greyscale"
@TOC Convert
@PREV BW
@NEXT Indexed

@{b}@{u}Menu Item:	Process/Convert/Greyscale...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-G@{uu}


	The @{b}Process/Convert/Greyscale...@{ub} menu item converts the current
image to a 256-shade greyscale image.  Both tracing and processing are
possible in this mode.

@ENDNODE


@NODE Indexed
@TITLE "Process/Convert/Indexed..."
@TOC Convert
@PREV Grey
@NEXT Full_Color

@{b}@{u}Menu Item:	Process/Convert/Indexed...@{uu}@{ub}

@{u}CommandKey:	Right_Amiga-I@{uu}

	The @{b}Process/Convert/Indexed...@{ub} menu item converts the current image
to an indexed color image with the given number of colors.  Tracing is
available when images are in this form; however, they must be in one of the
other modes to perform most image processing.

	@{b}Remove Isolated, Thin,@{ub} and @{b}Invert@{ub} are available; however, none of
the @{b}Process@{ub} submenu items are available for images in this form. They must
first be converted into one of the othering image models.

@ENDNODE


@NODE Full_Color
@TITLE "Convert/Full Color"
@TOC Convert
@PREV Indexed
@NEXT Summary

@{b}@{u}Menu Item:	Process/Convert/Full Color@{uu}@{ub}

@{u}Command Key:	Right_Amiga-F@{uu}

	@{b}Process/Convert/Full Color@{ub} converts the current image to a
24-bit-plane ("true color") image.  Indexed color images must be converted
to Full Color before most image processing.

	Full color images must be converted to one of the other three modes
before tracing.

@ENDNODE


@NODE Summary
@TITLE "Summary of Image Processing Commands"
@TOC Process
@PREV Process
@NEXT Main

@{b}@{u}Summary of Image Processing Effects@{uu}@{ub}


@{" Average Smooth " link Average} - Good for de-dithering gently dithered images.  A fast
process.  A fast process, but may excessively blur the image.

@{" Median Smooth " link Median} - Useful for de-dithering, consolidating small groups of
color into larger color contours (clears up the speckled appearance of some
bitmaps).  Removes small features, thin lines, sharp corners, and isolated
pixels (although it CAN add isolated pixels). Median Smoothing with a Width
of 1 and a Height of 5 is useful for cleaning up the time-base jitter from
un-corrected VCR input.

@{" Blur " link Blur} - Good for de-dithering coarsely dithered images.  Not as fast as
Average, but tends to blur less than Average with small radii.

@{" Gradient Smooth " link Gradient} - Smooths while avoiding smoothing across sharp color
gradients.  Useful for removing noise without loss of detail.

@{" Region Smooth " link Region} - Similar to Gradient smooth, but more agressive.  Useful
for removing anti-aliasing.  May create small facet-like areas that can be
consolidated by Posterize (see below).

@{" Minimum Smooth " link Minimum} - Replaces a pixel with the minimum pixel value in its
neighborhood.  In conjunction with Maximum smooth, can be useful for
removing small bright or dark areas.

@{" Maximum Smooth " link Maximum} - Replaces a pixel with the maximum pixel value in its
neighborhood.

@{" Sharpen " link Sharpen} - Sharpens the edges of an image.  Not useful for tracing objects,
but can be effective in conjunction with Edge Detection when tracing for
lines only.

@{" Edge Detect " link Edge_Detect} - Reduces an image to the edges (lines) which define its
contours (contours become objects after tracing).

@{" Thin " link Thin} - "Thins" thick objects into narrow lines while preserving existing
narrow lines.

@{" Remove Isolated " link Remove_Iso} - Replaces isolated pixels with the median of its
neighbors.

@{" Strip Bits " link Strip_Bits} - Reduces the color depth (bit-planes) of an image.
Arbitrarily strips the highest-order bit-planes from the image; thus, you
may get more desirable results by specifying depth with @{" Convert/Indexed " link Indexed}.

@{" Posterize " link Posterize} - A fairly quick process that gives a "posterizing" effect.
Particularly useful after Region Smooth to consolidate the facet-like
artifacts characteristic of that process.

@{" Scale " link Scale} - Shrinks or enlarges a bitmap.  Shrinking can be useful for
removing dithering.

@{" Invert " link Invert} - Replaces each pixel of the image with a pixel of the opposite
value.

@{" Brightness " link Brightness} - Adjusts intensity of all image pixels by the same amount.
Compare with Gamma Brightness below.

@{" Gamma Brightness " link Gamma} - Adjusts image brightness in a manner more consistent
with the way the human eye perceives it.  Will not alter Black or White.

@ENDNODE


@NODE Misc
@TITLE "Misc"
@PREV Main
@NEXT Help

@{b}@{u}Submenu:	Misc@{uu}@{ub}

	@{" Help... " link Help}
	@{" Active... " link Active}
	@{" Background... " link Background}
	@{" Screen Mode... " link Screen_Mode}
	@{" Display Prefs... " link Display}

@ENDNODE


@NODE Help
@TITLE "Misc/Help..."
@TOC Main
@PREV Misc
@NEXT Active

@{b}@{u}Menu Item:	Misc/Help...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-H@{uu}

	Choosing the @{b}Misc/Help...@{ub} menu item opens the on-line help data-base
provided with StylusTracer.  StylusTracer on-line help utilizes the standard
AmigaGuide hyper-text help utility.

	If you press the @{b}Help@{ub} key while the mouse pointer is over a menu
item or Toolbox tool, the Help data-base will open directly to the help for
that function; similarly, if the Help data-base is already open, it will
jump to the appropriate text.

@ENDNODE


@NODE Active
@TITLE "Misc/Active..."
@TOC Misc
@PREV Help
@NEXT Background

@{b}@{u}Menu Item:	Misc/Active...@{uu}@{ub}

@{u}Command Key:	Not available@{uu}

	The @{b}Misc/Active...@{ub} menu item allows you to isolate which color
channel (Red, Green, or Blue) processing should be done on.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Background
@TITLE "Misc/Background..."
@TOC Misc
@PREV Active
@NEXT Display

@{b}@{u}Menu Item:	Misc/Background...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-0@{uu}

	The Background requester allows you to specify one color as
background.  The Background color will not be traced, but will be treated
simply as the background upon which the objects are drawn.  Some of the
image-processing commands (@{b}Process/Misc/Thin@{ub}, among others) are also
dependent on this setting.

/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

	@{b}NOTE:@{ub}  The Background is not a global setting.  The @{b}Darkest,
Brightest,@{ub} and @{b}Most@{ub} colors will always be specific to a given bitmap.  Also,
the @{b}Most@{ub} color can be changed by many of the processes, so it may be
necessary to recalculate the Background color after processing and just
prior to tracing.

@ENDNODE


@NODE Screen_Mode
@TITLE "Misc/Screen Mode..."
@TOC Misc
@PREV Background
@NEXT Display


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Display
@TITLE "Misc/Display..."
@TOC Misc
@PREV Screen_Mode
@NEXT SaveSettings

@{b}@{u}Menu item:	Misc/Preferences...@{uu}@{ub}

@{u}Command key:	Right_Amiga-P@{uu}


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE SaveSettings
@TITLE "Misc/Save Settings"
@TOC Misc
@PREV Display
@NEXT Misc


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE User
@TITLE "User"
@PREV  Main
@NEXT Toolbox

@{b}@{u}Menu:	User@{uu}@{ub}

	The @{b}User@{ub} menu can be customized to create menu items for running
ARexx macros.  This menu has one permanent item, @{" Rexxecute... " link Rexxecute}.  Other
menu items may be added to it with the ARexx startup macro (named
"StylusTracer.strx" by default).

/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Rexxecute
@TITLE "User/Rexxecute..."
@TOC User
@PREV User
@NEXT User

@{b}@{u}Menu Item:	User/Rexxecute...@{uu}@{ub}

@{u}Command Key:	Right_Amiga-R@{uu}

	Choosing the @{b}User/Rexxecute...@{ub} menu item opens a file requester to
allow users to select and run ARexx macros.

/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

	For instructions on the use of the provided ARexx macros, see the
@{" STRX " link STRX.guide/Main} help.

	For information on how to write StylusTracer ARexx macros, see
@{" STRX Commands " link STRX_Commands.guide/Main}.

@ENDNODE


@NODE Toolbox
@TITLE "Toolbox"
@PREV Main
@NEXT Summary

@{b}@{u}The Touch-Up Toolbox...@{uu}@{ub}

	@{"  Zoom In   " link ZoomIn}@{"   Zoom Out  " link ZoomOut}
	@{"  Palette   " link Palette}@{" Eye Dropper " link EyeDropper}
	@{"    Crop    " link Crop}@{"   Polygon   " link Polygon}
	@{" Flood Fill " link Flood}@{"  Rectangle  " link Rectangle}
	@{"    Line    " link Line}@{"    Paint    " link Paint}
	@{" 1x1 Brush  " link Brushes}@{"  3x3 Brush  " link Brushes}
	@{" 5x5 Brush  " link Brushes}@{"  7x7 Brush  " link Brushes}

@ENDNODE


@NODE ZoomIn
@TITLE "The Zoom In Tool"
@TOC ToolBox
@PREV ToolBox
@NEXT ZoomOut

@{b}@{u}Tool:		Zoom In@{uu}@{ub}

@{u}Hotkey:		i (In) - optional keys: > and +@{uu}


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE ZoomOut
@TITLE "The Zoom Out Tool"
@TOC ToolBox
@PREV ZoomIn
@NEXT Palette

@{b}@{u}Tool:		Zoom Out@{uu}@{ub}

@{u}Hotkey:		o (Out) - optional keys: < and -@{uu}


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Palette
@TITLE "The Palette Requester Tool"
@TOC Toolbox
@PREV ZoomOut
@NEXT EyeDropper

@{b}@{u}Tool:		Palette Requester@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}


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@ENDNODE


@NODE EyeDropper
@TITLE "The EyeDropper Tool"
@TOC Toolbox
@PREV Palette
@NEXT Crop

@{b}@{u}Tool:		Eye Dropper@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}

	The @{b}Eye Dropper@{ub} tool provides an easy way to set the current color
directly from the bitmap display.  Simply select the @{b}EyeDropper,@{ub} then click
on a color in the display.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Crop
@TITLE "The Crop Tool"
@TOC Toolbox
@PREV EyeDropper
@NEXT Polygon

@{b}@{u}Tool:		Crop@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE CropReq
@TITLE "Crop Control Requester"
@TOC Toolbox
@PREV Crop
@NEXT Polygon

@{b}@{u}Tool:		Shift-Crop@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}

	The shift-clicking on the @{b}Crop@{ub} tool opens the Crop Control requester
requester, providing a pixel-precise method of cropping a bitmap.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Polygon
@TITLE "The Polygon Tool"
@TOC Toolbox
@PREV Crop
@NEXT Flood

@{b}@{u}Tool:		Polygon@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}

	The @{b}Polygon@{ub} tool allows you to draw simple, straight-sided, filled
polygons. 


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Flood
@TITLE "The Flood Fill Tool"
@TOC Toolbox
@PREV Polygon
@NEXT Brushes

@{b}@{u}Tool:		Flood Fill@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}

	The @{b}Flood Fill@{ub} tool will replace a color contour of the image with a
new color.  It has the optional ability to replace areas of similar color
rather than just pixels of the exactly identical color.

	Select the color you wish to fill with (see the @{" Palette " link Palette} tool)
Then click in the area of the image you wish to fill.

	To fill similar areas of color, shift-click on the @{b}Flood Fill@{ub} tool
to open the Flood Delta requester.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Rectangle
@TITLE "The Rectangle Tool"
@TOC Toolbox
@PREV Brushes
@NEXT Main

@{b}@{u}Tool:		Rectangle@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}


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@ENDNODE


@NODE Line
@TITLE "The Line Tool"
@TOC Toolbox
@PREV Rectangle
@NEXT Paint

@{b}@{u}Tool:		Line@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}


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@ENDNODE


@NODE Paint
@TITLE "The Paint Tool"
@TOC Toolbox
@PREV Line
@NEXT Brushes

@{b}@{u}Tool:		Paint@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}

	This tool is used in conjunction with the currently selected
@{" Brush " link Brushes} to touch up a bitmap image.  This tool essentially allows you to
paint freehand.


/****** THE HELP FILES HAVE BEEN ABRIDGED FOR THIS DEMO RELEASE. ******/

@ENDNODE


@NODE Brushes
@TITLE "The Paint Brushes"
@TOC Toolbox
@PREV Flood
@NEXT Main

@{b}@{u}Tools:		Brushes@{uu}@{ub}

@{u}Hotkey:		Not available@{uu}


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@ENDNODE