https://github.com/ImageMagick/ImageMagick/issues/1694

diff --git a/MagickCore/composite.c b/MagickCore/composite.c
index ae3b1ba33a994481f20e2033dc34a812c4b27259..62fb54138a5d4faa13ad0e2f1e5c82836b5527c7 100644 (file)
--- a/MagickCore/composite.c
+++ b/MagickCore/composite.c
@@ -579,7 +579,7 @@ MagickExport MagickBooleanType CompositeImage(Image *image,
   source_image=CloneImage(composite,0,0,MagickTrue,exception);
   if (source_image == (const Image *) NULL)
     return(MagickFalse);
-  if (IsGrayColorspace(image->colorspace) != MagickFalse)
+  if (IsGrayColorspace(image->colorspace) == MagickFalse)
     (void) SetImageColorspace(image,sRGBColorspace,exception);
   (void) SetImageColorspace(source_image,image->colorspace,exception);
   if ((compose == OverCompositeOp) || (compose == SrcOverCompositeOp))