Quantization Table Estimation in JPEG Images
نویسندگان
چکیده
منابع مشابه
Estimation of Primary Quantization Matrix in Double Compressed JPEG Images
In this report, we present a method for estimation of primary quantization matrix from a double compressed JPEG image. We first identify characteristic features that occur in DCT histograms of individual coefficients due to double compression. Then, we present 3 different approaches that estimate the original quantization matrix from double compressed images. Finally, most successful of them Ne...
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ژورنال
عنوان ژورنال: International Journal of Advanced Computer Science and Applications
سال: 2010
ISSN: 2158-107X,2156-5570
DOI: 10.14569/ijacsa.2010.010603