2022.05.21 19:37 "[Tiff] How to read JPEG-compressed YCbCr TIFFs", by L. E. Segovia

2022.06.10 19:44 "Re: [Tiff] How to read JPEG-compressed YCbCr TIFFs", by Even Rouault

To get upsampled YCbCr JPEG, just use

TIFFSetField( tiff, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB );

before using TIFFReadEncodedTile / TIFFReadEncodedStrip

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