330 search results - page 8 / 66 » Group Testing for Image Compression |
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper, we propose a statistical test to discriminate between original and forged regions in JPEG images, under the hypothesis that the former are doubly compressed while t...
SCIA
2005
Springer
14 years 25 days ago
2005
Springer
Abstract. DCT based image compression using blocks of size 32x32 is considered. An effective method of bit-plane coding of quantized DCT coefficients is proposed. Parameters of pos...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
The area of non-intrusive forensic analysis has found many applications in the area of digital imaging. One unexplored area is the identification of source coding in digital image...
ACTAC
1999
13 years 7 months ago
1999
A new image compression algorithm, Distortion Limited Wavelet Image Codec (DLWIC), is introduced. The codec is designed to be simple to implement, fast and have modest requirement...
ICIP
1997
IEEE
14 years 9 months ago
1997
IEEE
We present a novel technique for segmentation of a JPEGcompressed documentbased on block activity. The activity is measured as the number of bits spent to encode each block. Each ...