Fixed exif orientation issue reported in #32.

ImageMagick · Dec 26, 2018 · d7dc3ea · d7dc3ea
1 parent af2373c
commit d7dc3ea
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/coders/heic.c b/coders/heic.c
@@ -312,6 +312,12 @@ static Image *ReadHEICImage(const ImageInfo *image_info,
   heif_image_release(heif_image);
   heif_image_handle_release(image_handle);
   heif_context_free(heif_context);
+  /*
+    There is a discrepancy between EXIF data and the actual orientation of
+    image pixels. ReadImage processes "exif:Orientation" expecting pixels to be
+    oriented accordingly. However, in HEIF the pixels are NOT rotated.
+   */
+  SetImageProperty(image, "exif:Orientation", "1", exception);
   return(GetFirstImageInList(image));
 }
 #endif