23 search results - page 4 / 5 » Removable visible image watermarking algorithm in the discre... |
ICMCS
2006
IEEE
13 years 10 months ago
2006
IEEE
A new postprocessing method based on adjusted contourlet transform is introduced in this paper for suppressing blocking artifacts (BA) in block-based discrete cosine transform (BD...
MVA
1992
13 years 5 months ago
1992
In this study, we explore the domain of orthogonal transforms, in order to bring an understanding on the characterization of image features, with emphasis placed on the Karhunen-L...
ICPR
2000
IEEE
14 years 5 months ago
2000
IEEE
: Lossy transform compression of images is successful and widespread. The JPEG standard uses the discrete cosine transform on blocks of the image and a bit allocation process that ...
JMM2
2008
13 years 4 months ago
2008
In this work, an adaptive image compression algorithm is proposed based on the prediction of AC coefficients in Discrete Cosine Transform (DCT) block during reconstruction of image...
TCSV
2002
13 years 4 months ago
2002
A novel frequency-domain technique for image blocking artifact detection and reduction is presented in this paper. The algorithm first detects the regions of the image which presen...