Title: Primary Quality Factor Estimation in Double Compressed JPEG Images Using Quantization Error
Abstract: In this paper, we propose a new method to estimate the primary quality factor of double JPEG compressed image using quantization error. The method includes three steps: requantize DCT coefficients with a set of possible quantization matrixes, compute NMSQE (normalized mean square quantization error), and find the position of the smallest local minimum. Experimental results show that this method can estimate the primary quality factor effectively.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
Cited By Count: 1
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