From 3cb17ec22660447ea2193b34dcffba386781302d Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Wed, 30 Dec 2015 10:17:39 -0500
Subject: [PATCH] TIFF Group4 compression requires an image depth of 1

---
 coders/tiff.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/coders/tiff.c b/coders/tiff.c
index e2dfcee36..8a854202c 100755
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -3194,6 +3194,7 @@ static MagickBooleanType WriteTIFFImage(const ImageInfo *image_info,
       case Group4Compression:
       {
         (void) SetImageType(image,BilevelType,exception);
+        (void) SetImageDepth(image,1,exception);
         break;
       }
       case JPEGCompression:
-- 
2.40.0