Low Computational Image Compression Scheme based on Absolute Moment Block Truncation Coding
نویسندگان
چکیده
In this paper we have proposed three and two stage still gray scale image compressor based on BTC. In our schemes, we have employed a combination of four techniques to reduce the bit rate. They are quad tree segmentation, bit plane omission, bit plane coding using 32 visual patterns and interpolative bit plane coding. The experimental results show that the proposed schemes achieve an average bit rate of 0.46 bits per pixel (bpp) for standard gray scale images with an average PSNR value of 30.25, which is better than the results from the exiting similar methods based on BTC. Keywords—Bit plane, Block Truncation Coding, Image compression, lossy compression, quad tree segmentation
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