https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=33307

diff --git a/coders/hdr.c b/coders/hdr.c
index 793cd6ddf582fdea01aad5c384c516a9eab87f7f..3ed74ad9f5921405355bcca021a8d4bd4f2072fa 100644 (file)
--- a/coders/hdr.c
+++ b/coders/hdr.c
@@ -705,7 +705,7 @@ static MagickBooleanType WriteHDRImage(const ImageInfo *image_info,Image *image,
     Write header.
   */
   (void) ResetMagickMemory(header,' ',MagickPathExtent);
-  length=CopyMagickString(header,"#?RGBE\n",MagickPathExtent);
+  length=CopyMagickString(header,"#?RADIANCE\n",MagickPathExtent);
   (void) WriteBlob(image,length,(unsigned char *) header);
   property=GetImageProperty(image,"comment",exception);
   if ((property != (const char *) NULL) &&