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Compression of image using multi-wavelet techniques | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 125، دوره 13، شماره 1، خرداد 2022، صفحه 1519-1535 اصل مقاله (756.06 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2022.5768 | ||
| نویسندگان | ||
| Saba Abdul-Wahed* 1؛ Marwah Kamil Hussein2؛ Huda A. Ahmed2 | ||
| 1Department of Computer Science, College of Computer Science and Information Technology, University of Basrah, Basrah, Iraq | ||
| 2Department of Information Systems, College of Computer Science and Information Technology, University of Basrah, Basrah, Iraq | ||
| تاریخ دریافت: 16 مهر 1400، تاریخ بازنگری: 17 شهریور 1400، تاریخ پذیرش: 04 آذر 1400 | ||
| چکیده | ||
| Digital compression of images is a topic that has appeared in a lot of studies over the past decade to this day. As wavelet transform algorithms advance and procedures of quantization have helped to bypass current compression of image standards such as the JPEG algorithm. To get the highest effectiveness in compression of image transforms of wavelet need filters which gather a desirable character's number i.e., symmetry and orthogonally. Nevertheless, wave design capabilities are restricted due to their ability to have all of such desirable characters at the same time. The multi-wavelet technology removes a few of the restrictions of the wavelet play more than the options of design and thus able to gather all desired Characters of transforming. Wavelet and multi-wave filter banks are tested on a larger scale with images, providing more useful analysis. Multiple waves indicate energy-compression efficiency (a higher compression ratio usually indicates a higher mean square error, MSE, in the compressed image). Filter bank Characters such as orthogonal and compact support, symmetry, and phase response are important factors that also affect MSE and professed quality of the image. The current work analyzes the multi-wave Characters effect on the performance of compression of images. Four multi-wavelength Characters (GHM, CL, ORT4) were used in this thesis and the compression of image performance of grayscale images was compared with common scalar waves (D4). SPIHT quantification device in stress chart and use of PSNR and subjective quality measures to assess performance. The results in this paper point out those multi wave characteristics that are most important for the compression of images. Moreover, PSNR results and subjective quality show similar performance to the best scalar and multi-waves. The analysis also shows that a programmer based on multi-band conversion significantly improves the perceived image quality. | ||
| کلیدواژه‌ها | ||
| Image Processing؛ Compression؛ SPIHT؛ Multi-wavelet؛ MSE | ||
| مراجع | ||
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