PNG compression filters range from 0-5

ImageMagick · Mar 9, 2023 · 1307d32 · 1307d32
1 parent 3ac92ec
commit 1307d32
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/coders/png.c b/coders/png.c
@@ -11948,7 +11948,7 @@ static MagickBooleanType WritePNGImage(const ImageInfo *image_info,
        */
 
       mng_info->compression_filter = StringToUnsignedLong(value)+1;
-      if (mng_info->compression_filter > 10)
+      if (mng_info->compression_filter > 5)
         (void) ThrowMagickException(exception,
              GetMagickModule(),CoderWarning,
              "ignoring invalid defined png:compression-filter",