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I need to known how the luminance and subsampled chrominance are arranged in the jpeg stream.
I have a image of 512 * 512,when it undergoes 8 * 8 block arrangement, results in 4096 block.The chrominance undergoes downsampling in both horizontal and vertical,results in 256 * 256 ,and then...
In the dct computation ,whether any chance to get DC coefficient a low value than any of the AC coefficient?
While i computing DCT for a block ,the First AC coefficient got value higher than of the DC coefficient(but all other AC coefficient have low values and lower AC coefficients have...
While computing dct of 512 * 512 image,on the 8th block [the row from 0 to 7, and col from 56 to 63], i come across a problem
R = 227 221 219 213 203 202 187 174
227 221 219 213 203 202 187 174
227 221 219 213 203 202 187 174
227 221...
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