From 9e0f31c843d3c16cdc1fa58f7b182e96a78ecffd Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Tue, 7 Apr 2015 01:27:46 +0000
Subject: [PATCH]

---
 coders/jp2.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/coders/jp2.c b/coders/jp2.c
index ffd5d1252..ae64da84d 100644
--- a/coders/jp2.c
+++ b/coders/jp2.c
@@ -955,6 +955,11 @@ static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image,
       ((image->columns == 2048) || (image->rows == 1080) ||
        (image->columns == 4096) || (image->rows == 2160)))
     CinemaProfileCompliance(jp2_image,&parameters);
+  if (channels == 4)
+    jp2_image->comps[3].alpha=1;
+  else
+   if ((channels == 2) && (jp2_colorspace == OPJ_CLRSPC_GRAY))
+     jp2_image->comps[1].alpha=1;
   /*
     Convert to JP2 pixels.
   */
-- 
2.40.0