Title :
Just-Noticeable Distortion Estimation for Image Pixels
Author :
Zhang, X.H. ; Lin, W.S. ; Xue, P.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.
fDate :
Oct. 30 2005-Nov. 2 2005
Abstract :
This paper addresses the issue of incorporating contrast sensitivity function (CSF) into just-noticeable distortion (JND) estimation for image pixels in spatial domain. Based upon our earlier work on DCT-subband JND estimation, the resultant new pixel-wise JND model fully incorporates the spatial CSF, in addition to considerations of luminance adaptation and local contrast masking effect. Various experiments confirm the improved accuracy of the proposed model over the existing relevant JND estimators
Keywords :
data compression; distortion; image coding; CSF; JND estimation; contrast sensitivity function; image pixel; just-noticeable distortion; local contrast masking effect; luminance adaptation; Digital images; Discrete cosine transforms; Frequency; Humans; Image coding; Motion estimation; Pixel; Psychology; Transform coding; Video compression;
Conference_Titel :
Multimedia Signal Processing, 2005 IEEE 7th Workshop on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9288-4
Electronic_ISBN :
0-7803-9289-2
DOI :
10.1109/MMSP.2005.248671
