50 search results - page 1 / 10 » DCT quantization noise in compressed images |
ICIP
2001
IEEE
14 years 6 months ago
2001
IEEE
In lossy image compression schemes utilizing the discrete cosine transform (DCT), quantization of the DCT coefficients introduces error in the image representation and a loss of s...
ICIAP
2001
Springer
14 years 4 months ago
2001
Springer
ICASSP
2010
IEEE
13 years 4 months ago
2010
IEEE
Inspired by recent theoretical advances in compressive sensing (CS), we propose a new framework that combines the classical local discrete cosine transform used in image compressi...
SCIA
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. DCT based image compression using blocks of size 32x32 is considered. An effective method of bit-plane coding of quantized DCT coefficients is proposed. Parameters of pos...
ICIP
2001
IEEE
14 years 6 months ago
2001
IEEE
Given a color image that was quantized in some hidden color space (termed compression color space) during previous JPEG compression, we aim to estimate this unknown compression co...