IFF - FX 1.1 AGA ================ - A Progam to perform several effects on IFF/ILBM - Pictures on an Amiga with AGA - Chipset. - Vastly improved from V 1.0 !!!! (Actually rewrote most of the code) - NEW Effects added, others thrown out (the tedious ones) IFF_FX is Freeware. (Freely Distributable) This archive should contain: IFF_FX ;The Program IFF_FX_AGA_doc ;English documentation IFF_FX_AGA_dok ;Deutsche Anleitung ------------------------------------------------------------------------ Versions: 1.0 18 Jan 1995 - First Version. 1.1 4 Jun 1995 - Major Bugfix, New Features, Vast Improvements of existing features; Many effects now in full glorious color !!! The Program should not crash anymore, all known bugs were removed. (and there were many :-( ) ------------------------------------------------------------------------ IFF_FX is Copyright © 1995 Ralf Treuherz. All Rights reserved. The author will take no responsibility for any damage which results in improper use of this program. ------------------------------------------------------------------------ Description ----------- Based on a source picture the program will perform some mathematical operations like the detections of edges and will save the result as an IFF/ILBM picture. ------------------------------------------------------------------------ Requirements - An Amiga 1200 or 4000 (sorry, but the algorithms needed 256 steps of grey!) - reqtools.library ------------------------------------------------------------------------ How to start IFF_FX ------------------- IFF_FX can be called either from Workbench or CLI. * Usage from Workbench Double-click the Icon. The rest should be quite intuitive: Select a Source-Picture (SourcePic) and a Destination- Picture (DestPic), choose an effect, and press "Process" ! * Usage from CLI IFF_FX [Effect] and are filenames of Pictures and [Effect] is an optional Number 0-8 for an effect (see below) ------------------------------------------------------------------------ The Effects ----------- If both a Source- and Destination-Picture is chosen, the Program will compute the Destination-Picture from the Source-Picture with the following Effects: a) Effect: none or 0 / Button: Grey NEW: Now is a real Greyscale representation according to the reception of colors to the human eye (the simple (r+g+b)/3 gives not the correct result). This effect is also used as a precomputing for Effects 1 - 3. The Result is a Greyscale - Representation of the Source. The number of Bitplanes is not changed. b) Effect: 1 / Button: Amplitude The Result is a Picture containing the Quality of the Edges in the SourcePic using the Sobel-Operator. Edges which sourround an Object in the SourcePic will result in a closed line in the DestPic. c) Effect: 2 / Button: Phase The Result is a Picture which contains the Direction of the Edges. Perhaps of little use to pictures with very high detail. d) Effect: 3 / Button: Outline The Result is a Picture that looks like a Relief. Especially useful for Workbench-Backgrounds if you convert the resulting 256-Greys - Picture to fewer colors using the appropriate program. e) Effect: 4 / Button: Smooth NEW: This effect now results in a color picture ! The Source - Picture is smoothed with a 3*3 Grid, (Low - Pass) the colormap is not altered. f) Effect: 5 / Button: Median NEW EFFECT ! Mostly comparable to "Smooth", but gives better results with pictures that are distorted with black/white - Noise (extreme spikes), is a bit slower than "Smooth" because of the involved sorting- algorithm. g) Effect: 6 / Button: Sharpen NEW EFFECT ! Actually, "Smooth" in Reverse, doing a Highpass. h) Effect: 7 / Button: Halve NEW EFFECT ! This proves to be very useful in conjunction with other memory-eating-high-tech-24-Bit-Products like 'Art Department Pro'. Halves the vertical and horizontal size, adapts the screenmode accordingly. i) Effect: 8 / Button: Invert This Effect inverts the Colormap and will not change the number of Colors in the Picture. ------------------------------------------------------------------ The Author ---------- Ralf Treuherz gl176@appl1.hrz.uni-siegen.de Please send any comments about this Program to this E-Mail address.