SQContrast.svoperator © 1995 by Steve Quartly. FREEWARE. All rights reserved. Version : 3.1 Release Date : 16.02.1996 Requirements ~~~~~~~~~~~~ - OS V2.04+ (V37)+ and its libraries - superviewsupport.library V5+ Description ~~~~~~~~~~~ SQContrast.svoperator is an external SV_GfxBuffer modification module for superview.library. This operator allow you to adjust the contrast of an image. ***NOTE: This operator will only work on a 24 bit buffer. This is not a major problem as you can apply the AnyTo24Bit.svoperator first and then apply this operator quite successfully. ControlPad-Switches ~~~~~~~~~~~~~~~~~~~ ControlPad-Name : "ENV:superview-library/SQContrast.controlpad" ControlPad-Commands : - PERCENTAGE=<1..100> ; This the percentage of Contrast to be applied. - EFFECT= ; Lighten or darken the contrast. ; ; The following controlpads allow you to apply ; this operator to a rectangular region of the ; image. - LEFTEDGE= ; crop from x position ; (will be adjusted, if >= source width) - TOPEDGE= ; crop from y position ; (will be adjusted, if >= source height) - WIDTH= ; crop how many x pixels from leftedge ; (will be adjusted, if too large) - HEIGHT= ; crop how many y pixels from topedge ; (will be adjusted, if too large) Author ~~~~~~ Steve Quartly 1280 Stevens St MUNDARING Western Australia steveq@sndcrft.DIALix.oz.au History ~~~~~~~ V1.0 (01.09.1995) : - first public release V3.1 (1.1.1996) : - added progress indicator support