From 745b3bccba44a6c029d144f8a0fa270e838f8e22 Mon Sep 17 00:00:00 2001 From: Cristy Date: Wed, 30 Dec 2015 21:24:49 -0500 Subject: [PATCH] Group4Compression requires a bilevel image --- coders/tiff.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/coders/tiff.c b/coders/tiff.c index 8a854202c..6335f5ac0 100755 --- a/coders/tiff.c +++ b/coders/tiff.c @@ -2486,6 +2486,8 @@ static MagickBooleanType WriteGROUP4Image(const ImageInfo *image_info, (void) SetImageType(huffman_image,BilevelType,exception); write_info=CloneImageInfo((ImageInfo *) NULL); SetImageInfoFile(write_info,file); + (void) SetImageType(image,BilevelType,exception); + (void) SetImageDepth(image,1,exception); write_info->compression=Group4Compression; write_info->type=BilevelType; (void) SetImageOption(write_info,"quantum:polarity","min-is-white"); -- 2.40.0