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An improved first quantization matrix estimation for nonaligned double compressed JPEG images.
Heng Yao
Hongbin Wei
Chuan Qin
Xinpeng Zhang
Published in:
Signal Process. (2020)
Keyphrases
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jpeg images
file size
compressed domain
compression algorithm
dct coefficients
compressed images
spatial domain
discrete cosine transform
data hiding
high quality
dct domain
motion vectors
denoising
frequency domain