基于块截断编码和Walsh Hadamard变换混合技术的数字图像压缩

2014 International Conference on Computer, Communications, and Control Technology (I4CT) Pub Date : 2014-10-02 DOI:10.1109/I4CT.2014.6914230

S. E. Ghrare, Ahmed R. Khobaiz

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引用次数: 28

摘要

随着现代通信技术的不断发展，对图像数据压缩的需求也在迅速增长。实现数据压缩的技术可以分为两种基本方法:空间编码和变换编码。本文提出了一种基于块截断编码(BTC)和Walsh Hadamard变换(WHT)的数字图像混合压缩方法。这种混合方法的目标是通过应用BTC和WHT来实现更高的压缩比。利用多幅灰度测试图像对混合方法的编码效率和性能进行了评价，并分别与BTC和WHT进行了比较。结果表明，该方法具有较好的计算效果。

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Digital image compression using Block Truncation Coding and Walsh Hadamard Transform hybrid technique

With the continuing growth of modern communication technologies, demand for image data compression is increasing rapidly. Techniques for achieving data compression can be divided into two basic approaches: spatial coding and Transform coding. This research paper presents a proposed method for the compression of digital images using hybrid compression method based on Block Truncation Coding (BTC) and Walsh Hadamard Transform (WHT). The objective of this hybrid approach is to achieve higher compression ratio by applying BTC and WHT. Several grayscale test images are used to evaluate the coding efficency and performance of the hybrid method and compared with the BTC and WHT respectively. It is generally shown that the proposed method gives better results.

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2014 International Conference on Computer, Communications, and Control Technology (I4CT)

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