sigmoidal-contrast: prevent argument out of range and remove unnecessary ClampToQuantum

[imagemagick] / MagickCore / image.h

diff --git a/MagickCore/image.h b/MagickCore/image.h
index 02bf2c8e9d94153ca2efc2fb2cb15b1c9a727d72..b5a058d589574344c8b4cbb764bbad578a0e4f07 100644 (file)
--- a/MagickCore/image.h
+++ b/MagickCore/image.h
@@ -164,8 +164,7 @@ struct _Image
     orientation;        /* photo orientation of image */
 
   MagickBooleanType
-    taint,              /* has image been modified since reading */
-    matte;              /* is transparency channel defined and active */
+    taint;              /* has image been modified since reading */
 
   size_t
     columns,            /* physical size of image */
@@ -275,7 +274,7 @@ struct _Image
     mask;
 
   PixelTrait
-    alpha_trait;
+    alpha_trait;       /* is transparency channel defined and active */
 
   size_t
     number_channels,