Quality control method of the transmission of fine image details in the JPEG2000

被引：1
|
作者：
Sai, S., V [1 ]
Shoberg, A. G. [1 ]
机构：
[1] Pacific Natl Univ, Khabarovsk, Russia
来源：
COMPUTER OPTICS | 2020年 / 44卷 / 03期
关键词：
image analysis; distortion metric; discrete wavelet transform; quantization; JPEG2000; DISTORTION;
D O I：
10.18287/2412-6179-CO-616
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The article proposes a method for controlling the transmission quality of fine image details in the JPEG2000 standard based on an automatic adjustment of the quantization parameters of discrete wavelet transform (DWT) coefficients. An algorithm for setting up quantization scale parameters for different transformation sub-ranges of the DWT coefficients depending on given (permissible) distortions is described. For an objective assessment of image quality, numerical measures of fine detail distortion in a normalized N-CIELAB colorimetric system are used, according to which an analysis of their structural features is performed. Results of the experimental studies of the analysis of image quality and compression efficiency depending on the quantization parameters utilized in the developed adaptive compression algorithm are presented. Results of evaluating the algorithm performance that can be used for practical applications in multimedia applications are also presented.
引用
收藏
页码：401 / +
页数：10
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