diff --git a/imageio/imageio-webp/src/test/resources/webp/alpha_filter.webp b/imageio/imageio-webp/src/test/resources/webp/alpha_filter.webp new file mode 100644 index 00000000..e3e9ed78 Binary files /dev/null and b/imageio/imageio-webp/src/test/resources/webp/alpha_filter.webp differ