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COLOR IMAGE COMPRESSION USING RIDGELET TRANSFORM AND SPIHT QUANTIZATION IMAGE VIDEO | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 3, 2011, Pages 70-87 | ||
| Authors | ||
| Rafah Abdul Hadi; Seham Ahmed Al-Musewy; Walid A.Mahmoud | ||
| Abstract | ||
| An effective image coding technique which involves transforming the image into another domain with Ridgelet function and then quantizing the coefficients with modified threshold. Ridgelet functions are effective in representing functions that have discontinuities along straight lines. Normal Wavelet transforms fail to represent such functions effectively. This paper shows the application of wavelet analysis to image compression. All of the four steps in compression namally transform, quantization, and coding. achieved quantization part deals with the translation of large set of data into a smaller set. On the other hand, coding deal with the representation of these transformed and quantizaed data into bits. Acomplete implementation, with remarkable results, are presented. The results obtained from the combination of ridgelet gave much better performance than that obtained from the Wavelet ,and multiwavelet Transform with ridgelet transforms. | ||
| Keywords | ||
| Image Compression; Wavelet Transform; mulltwavelet transform Color space; Color Image | ||
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