Fix decoder

6 years ago · 465f49c8d3
1 changed files with 1 additions and 1 deletions
--- a/src/ImageSharp/Formats/WebP/Lossless/LosslessUtils.cs
+++ b/src/ImageSharp/Formats/WebP/Lossless/LosslessUtils.cs
@ -261,7 +261,7 @@ namespace SixLabors.ImageSharp.Formats.WebP.Lossless
                // First Row follows the L (mode=1) mode.
                PredictorAdd0(input, null, 1, output);
-                PredictorAdd1(input + 1, null, width - 1, output);
+                PredictorAdd1(input + 1, null, width - 1, output + 1);
                input += width;
                output += width;