Title :
The perceptually transparent coding for image
Author :
Wei, Zhenyu ; Ngan, King N.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
In this paper, an improved transparent image coding algorithm is proposed, where the quantization factor can be tuned for each block according to the just-noticeable distortion (JND). The experimental results show that the images compressed by the proposed method are hardly distinguished from the original images. Therefore, the proposed method can achieve perceptually transparent quality for images. Moreover, the bitrate of the proposed algorithm is less than that of the state-of-the-arts lossless and near-lossless codecs.
Keywords :
data compression; distortion; image coding; quantisation (signal); images compression; just-noticeable distortion; quantization factor; transparent image coding; Biomedical imaging; Bit rate; Codecs; Discrete cosine transforms; Equations; Humans; Image coding; Image processing; Quantization; Redundancy;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5118082
