[Skim-app-commit] SF.net SVN: skim-app:[12544] trunk/NSGraphics_SKExtensions.m

[hofman--- via Skim-app-commit]

Revision: 12544
          http://sourceforge.net/p/skim-app/code/12544
Author:   hofman
Date:     2021-11-11 15:44:15 +0000 (Thu, 11 Nov 2021)
Log Message:
-----------
update comment

Modified Paths:
--------------
    trunk/NSGraphics_SKExtensions.m

Modified: trunk/NSGraphics_SKExtensions.m
===================================================================
--- trunk/NSGraphics_SKExtensions.m     2021-11-10 23:10:47 UTC (rev 12543)
+++ trunk/NSGraphics_SKExtensions.m     2021-11-11 15:44:15 UTC (rev 12544)
@@ -198,8 +198,8 @@
     }
     if (SKHasDarkAppearance(NSApp) && [[NSUserDefaults standardUserDefaults] 
boolForKey:SKInvertColorsInDarkModeKey]) {
         // This is like CIColorInvert + CIHueAdjust, modified to map white to 
dark gray rather than black
-        // Inverts a linear luminocity/brightness for weights 0.3086, 0.6094, 
0.0820
-        //  see 
https://wiki.preterhuman.net/Matrix_Operations_for_Image_Processingand 
https://beesbuzz.biz/code/16-hsv-color-transforms
+        // Inverts a linear luminocity with weights from the CIE standards
+        // see 
https://wiki.preterhuman.net/Matrix_Operations_for_Image_Processingand 
https://beesbuzz.biz/code/16-hsv-color-transforms
         if ((filter = [CIFilter filterWithName:@"CIColorMatrix" 
keysAndValues:@"inputRVector", [CIVector vectorWithX:1.0-LR Y:-LG Z:-LB], 
@"inputGVector", [CIVector vectorWithX:-LR Y:1.0-LG Z:-LB], @"inputBVector", 
[CIVector vectorWithX:-LR Y:-LG Z:1.0-LB], @"inputBiasVector", [CIVector 
vectorWithX:1.0 Y:1.0 Z:1.0], nil]))
             [filters addObject:filter];
     }

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