Robust and blind watermarking algorithm based on DCT and SVD in the contourlet domain
Sign Up to like & getrecommendations! Published in 2019 at "Multimedia Tools and Applications"
DOI: 10.1007/s11042-019-08530-z
Abstract: A blind watermarking algorithm in multiple transform domains is presented for copyright protection. This robust algorithm is designed by fusing contourlet transform (CT), discrete cosine transform (DCT) and singular value decomposition (SVD). The host image… read more here.
Keywords: watermarking algorithm; based dct; blind watermarking; robust blind ... See more keywords
Reduction of JPEG compression artifacts based on DCT coefficients prediction
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DOI: 10.1016/j.neucom.2019.12.015
Abstract: Abstract The image compression-decompression process causes image quality degradations such as blocking and ringing artifacts. A convolutional neural network based on DCT domain is proposed to learn the mapping relationship between JPEG images and original… read more here.
Keywords: compression; dct coefficients; based dct; compression artifacts ... See more keywords
A combined spectrum sensing method based DCT for cognitive radio system
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Electrical and Computer Engineering"
DOI: 10.11591/ijece.v10i2.pp1935-1942
Abstract: In this paper a new hybrid blind spectrum sensing method is proposed. The method is designed to enhance the detection performance of Conventional Energy Detector (CED) through combining it with a proposed sensing module based… read more here.
Keywords: sensing method; method based; spectrum sensing; combined spectrum ... See more keywords