2005.05.25 09:52 "[Tiff] How to Write a tif file with compression =
COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Kelvin Zhong
Thread
2005.05.25 10:41 "Re: [Tiff] How to Write a tif file with compression = COMPRESSION_JPEG & photometric = PHOTOMETRIC_YCBCR ?", by Jean-Yves Le Ridant
I want to write a bitcount = 24bit(or 8bit) image to a tif file with JPEG compression. I can save it with photometric = PHOTOMETRIC_RGB,but when i save it with PHOTOMETRIC_YCBCR it seems doesn't work, why?
It seems that i should do some operations on the RGB source image before i save it with PHOTOMECTRIC_YCBCR?
This operations are done by libtiff if you uncomment TIFFSetField(m_tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); in the program you have posted.
Best would be to have a tiffinfo of tiffdump of the file that acdsee don't want to open.
Jean-Yves