Reduction of blocking artifacts by cepstral filtering
نویسندگان
چکیده
منابع مشابه
Reduction of blocking artifacts by cepstral filtering
We propose a convolution model for the blocking artifacts in compressed images and videos, and a cepstral filtering algorithm for reducing the artifacts. Since each of the horizontal or vertical line of the compressed image has abrupt changes at almost every 8th samples, it can be modeled as a convolution of the original sequence with an excitation signal of periodicity 8. Comparison of the cep...
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ژورنال
عنوان ژورنال: Signal Processing
سال: 2001
ISSN: 0165-1684
DOI: 10.1016/s0165-1684(00)00237-1