Set YcbcrSubSampling to 1, 1 with jpeg compression and PhotometricInterpretation YCbCr

3 years ago · 14ced6f6d2
1 changed files with 12 additions and 0 deletions
--- a/src/ImageSharp/Formats/Tiff/TiffDecoderOptionsParser.cs
+++ b/src/ImageSharp/Formats/Tiff/TiffDecoderOptionsParser.cs
@ -628,6 +628,12 @@ internal static class TiffDecoderOptionsParser
                    options.ColorType = TiffColorType.Rgb;
                }

+                if (options.PhotometricInterpretation is TiffPhotometricInterpretation.YCbCr)
+                {
+                    options.YcbcrSubSampling[0] = 1;
+                    options.YcbcrSubSampling[1] = 1;
+                }
+
                break;
            }

@ -642,6 +648,12 @@ internal static class TiffDecoderOptionsParser
                    options.ColorType = TiffColorType.Rgb;
                }

+                if (options.PhotometricInterpretation is TiffPhotometricInterpretation.YCbCr)
+                {
+                    options.YcbcrSubSampling[0] = 1;
+                    options.YcbcrSubSampling[1] = 1;
+                }
+
                break;
            }