Title :
Improvement of the compression JPEG quality by a pre-processing algorithm based on denoising
Author :
Kacem, H.L.H. ; Kammoun, F. ; Bouhlel, Mohamed Salim
Author_Institution :
Sci., Image Technol. & Telecommun., High Inst. of Biotechnology, Tunisia
Abstract :
For communication and storage efficiency, image data should be substantially compressed. The compression ratio is limited by noise, which degrades the correlation between pixels. Noise can occur during image capture, transmission or processing, and may be dependent on or independent of image content. In this study, we use standard filters that permits to remove some details of the image and to reduce all possible noise. After filtering, the image is compressed with JPEG. By discarding the noise, the compression ratio can be improved. This method was verified using 2 images. This technique can increase the ratio without significantly affecting the image quality. This process has a great impact on storage and transmission.
Keywords :
data compression; filtering theory; image coding; image denoising; compression JPEG quality; image data compression; image filtering; noise reduction; preprocessing algorithm; storage efficiency; Biotechnology; Degradation; Filtering; Image coding; Noise reduction; Nonlinear filters; Pixel; Signal to noise ratio; Transform coding; Wiener filter;
Conference_Titel :
Industrial Technology, 2004. IEEE ICIT '04. 2004 IEEE International Conference on
Print_ISBN :
0-7803-8662-0
DOI :
10.1109/ICIT.2004.1490752