From: Cristy <urban-warrior@imagemagick.org>
Date: Fri, 21 Jul 2017 13:09:17 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/594
X-Git-Tag: 7.0.6-2~6
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=241552c26255baa01b41078a60229128b93d2342;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/594
---

diff --git a/MagickCore/attribute.c b/MagickCore/attribute.c
index 43ee6b3e2..1d822b82e 100644
--- a/MagickCore/attribute.c
+++ b/MagickCore/attribute.c
@@ -1255,15 +1255,7 @@ MagickExport MagickBooleanType SetImageType(Image *image,const ImageType type,
     case BilevelType:
     {
       if (SetImageMonochrome(image,exception) == MagickFalse)
-        {
-          status=TransformImageColorspace(image,GRAYColorspace,exception);
-          (void) NormalizeImage(image,exception);
-          quantize_info=AcquireQuantizeInfo(image_info);
-          quantize_info->number_colors=2;
-          quantize_info->colorspace=GRAYColorspace;
-          status=QuantizeImage(quantize_info,image,exception);
-          quantize_info=DestroyQuantizeInfo(quantize_info);
-        }
+        status=AutoThresholdImage(image,UndefinedThresholdMethod,exception);
       image->alpha_trait=UndefinedPixelTrait;
       break;
     }