Improved Adaptive Block Truncation Coding for Image Compression
نویسندگان
چکیده
منابع مشابه
Improved Adaptive Block Truncation Coding for Image Compression
The Block Truncation Coding (BTC) is one of the lossy image compression algorithms. In this paper, we have proposed a method called the Improved Adaptive Block Truncation Coding (IABTC) based on Adaptive Block Truncation Coding (ABTC). The feature of inter-pixel redundancy is exploited to reduce the bit-rate further by retaining the quality of the reconstructed images. The proposed method outpe...
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The block truncation coding (BTC) algorithm for image compression has the advantages of low computation load and less memory requirement. In this paper, an adaptive image compression algorithm using multilevel BTC is proposed. An input image is partitioned into blocks with variable sizes, and the gray values of each block are adaptively quantized to be one, two, or four levels according to loca...
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In this paper, a cost effective block truncation coding (CE-BTC) using low cost approach is presented for color image compression. To reduce the bit rate of the basic BTC, selected single bit-map is employed to represent the edge information of the coding block in the proposed CE-BTC. Moreover, a previous proposed algorithm, adaptive quantization coding (AQC), is used to compress the two repres...
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Image compression is used to reduce the size of digital image files in order to lessen the physical storage and transmission bandwidth costs. The main challenge in image compression is reducing the file size while maintaining much of the visual information. In this study, we explore one class of image compression techniques – the Block Truncation Coding (BTC) – and propose a new variant which w...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2011
ISSN: 0975-8887
DOI: 10.5120/2377-3133