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SQContrast.svoperator
© 1995 by Steve Quartly.
FREEWARE. All rights reserved.
Version : 3.5
Release Date : 11.01.1998
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|DARKEN>
; Lighten or darken the contrast.
;
; The following controlpads allow you to apply
; this operator to a rectangular region of the
; image.
- REGION=<ENTIREIMAGE|RECTANGULAR>
; area of image to work on
- LEFTEDGE=<Value>
; crop from x position
; (will be adjusted, if >= source width)
- TOPEDGE=<Value>
; crop from y position
; (will be adjusted, if >= source height)
- WIDTH=<Value>
; crop how many x pixels from leftedge
; (will be adjusted, if too large)
- HEIGHT=<Value>
; crop how many y pixels from topedge
; (will be adjusted, if too large)
Author
~~~~~~
Steve Quartly
1280 Stevens St
MUNDARING
Western Australia steveq@mafeking.scouts.org.au
History
~~~~~~~
V1.0 (01.09.1995) :
- first public release
V3.1 (1.1.1996) :
- added progress indicator support
V3.5 (11.01.98) :
- updated to support semaphores
- fix bug with REGION control pad