...

diff --git a/MagickCore/attribute.c b/MagickCore/attribute.c
index 83c92814f3074cd53ba6f82f847d1c6368e2ab31..eaa770036467137c2428745502ca41111bc772ac 100644 (file)
--- a/MagickCore/attribute.c
+++ b/MagickCore/attribute.c
@@ -1032,7 +1032,7 @@ MagickExport MagickBooleanType SetImageDepth(Image *image,
 
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
       #pragma omp parallel for schedule(static,4) shared(status) \
-        magick_number_threads(image,image,image->rows,1)
+        magick_number_threads(image,image,image->colors,1)
 #endif
       for (i=0; i < (ssize_t) image->colors; i++)
       {