DCWT : Image Compression Method Based On Wavelet and DCT Transforms | ||
| Baghdad College of Economic sciences University | ||
| Article 1, Volume 0, Issue 32, June 2018, Pages 328-338 | ||
| Authors | ||
| Abdulla Mohamed Awad; Dr. Ahmed Tariq Sadiq | ||
| Abstract | ||
| This paper deals with image compression using Discrete Cosine Transform (DCT) and Haar wavelets transforms (WT). The mathematical properties of Haar wavelets and DCT are covered to explore the field of still image compression methods, which improve on existing techniques and develop new image compressors. DCWT is more efficient than corresponding DCT and wavelet transform functions. Incorporating DCT and wavelet transform is shown to improve the performance of the DCT and wavelet (Haar, IWT). Several methods are compared in terms of their ability to compress standard images and the fidelity of the reproduced image to the original image. In the new proposed method the compression rate is approximately equal to 1:22 and this rate is more efficient than that of the still image compression methods. | ||
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