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January 2005
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2005.01.24 05:29 "Re: about jpeg sample factor", by Lee Howard
On 2005.01.23 19:43 yangrz@Lenovo.com wrote: > Now I am developing a camera application, > > but the data image format from camera driver is YCbCr 4:2:2. I think that's the default subsampling tag. > or where can find some example of using the jpeg_write_raw_data() > function? Just use TIFFWriteRawStrip and make sure that you set TIFFTAG_COMPRESSION = COMPRESSION_JPEG and TIFFTAG_PHOTOMETRIC = PHOTOMETRIC_YCBCR and other applicable tags beforehand. Lee.