https://github.com/ImageMagick/ImageMagick/issues/4121

ImageMagick · Aug 28, 2021 · 6ba45df · 6ba45df
1 parent 0aab306
commit 6ba45df
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/magick/attribute.c b/magick/attribute.c
@@ -1576,12 +1576,12 @@ MagickExport MagickBooleanType SetImageType(Image *image,const ImageType type)
     {
       status=TransformImageColorspace(image,GRAYColorspace);
       (void) NormalizeImage(image);
-      status=BilevelImage(image,QuantumRange/2.0);
       quantize_info=AcquireQuantizeInfo(image_info);
       quantize_info->number_colors=2;
-      quantize_info->colorspace=GRAYColorspace;
+      quantize_info->dither_method=FloydSteinbergDitherMethod;
       status=QuantizeImage(quantize_info,image);
       quantize_info=DestroyQuantizeInfo(quantize_info);
+      status=MinMaxStretchImage(image,0.0,0.0,1.0);
       image->matte=MagickFalse;
       break;
     }