Squashed JPEG Image Compression via Sparse Matrix
نویسندگان
چکیده
منابع مشابه
Compression detection, Image quality, JPEG
The paper presents two methods of prior JPEG-compression detection. In the first method the histogram of chrominance is analysed. In JPEGcompressed images the histogram contains significantly more local maxima than in uncompressed files. The second method is based on neighbouring pixel Ø value difference. In JPEG-compressed image the distribution of these values is different than the distributi...
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ژورنال
عنوان ژورنال: International Journal of Computer Science and Information Technology
سال: 2017
ISSN: 0975-4660,0975-3826
DOI: 10.5121/ijcsit.2017.93012