Comparison of Image Compression Techniques using DWT, DAST And LZW With PCA |
Author(s): |
| Rajeswari K , Velalar College of Engineering and Technology; Kavitha K, Velalar College of Engineering and Technology; Boopathi Raja G, Velalar College of Engineering and Technology |
Keywords: |
| Compression Ratio, Image compression, LZW, PSNR |
Abstract |
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Image compression technique is widely used in multimedia applications such as image, video, audio data and medical field. Image compression aims to reduce the redundancy of an image data and reduce the storage space of an image. Different image compression techniques were proposed to achieve high compression ratios and high image qualities in low computation time. This paper compares the various image compression methods with Lempel–Ziv–Welch (LZW) algorithm. LZW is a universal lossless algorithm for image compression which has the advantages of low computation load and less memory requirement. It is a fastest algorithm. This algorithm is widely used in UNIX file and gif image format. This proposed technique is used to increase the Compression Ratio (CR) and Peak Signal to Noise Ratio (PSNR). |
Other Details |
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Paper ID: IJSRDV3I30181 Published in: Volume : 3, Issue : 3 Publication Date: 01/06/2015 Page(s): 564-567 |
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