Smoothing DCT Compression Artifacts N
نویسندگان
چکیده
d image in the discrete cosine transform (DCT) omain can generate blocky artifacts in the outs a put image. It is possible to reduce these artifact nd RMS error by adjusting measures of block g t edginess and image roughness, while restrictin he DCT coefficient values to values that would d i have been quantized to those of the compresse mage. We also introduce a DCT coefficient . amplitude adjustment that reduces RMS error
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