filters: link to explanation of ginseng filter

This one was coined by IM, so leave a link back to the source.
haasn · Oct 12, 2024 · a546431 · a546431
1 parent 469e5b3
commit a546431
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/filters.c b/src/filters.c
@@ -748,6 +748,7 @@ const struct pl_filter_config pl_filter_lanczos = {
     .recommended = PL_FILTER_SCALING,
 };
 
+// See https://legacy.imagemagick.org/Usage/filter/nicolas/#upsampling
 const struct pl_filter_config pl_filter_ginseng = {
     .name        = "ginseng",
     .description = "Ginseng (Jinc-Sinc)",