In recent years, with the continuing growth of the modern communication and computer
technologies, the need for transmission and storage of digital image data is rapidly …

The discrete cosine transform (DCT) performs a very important role in the application of
lossy compression for representing the pixel values of an image using lesser number of …

Vector quantization (VQ) is a common compression technique. The VQ uses the minimum
distortion measure to find out the most suitable codeword index in the codebook. The …

向量量化是一種關於低位元比率影像編的有效技術. 然而, 向量量化影像編碼的初期研究揭示了
一些難處, 主要是在影像邊緣部分和高計算複雜性o 雖然已經有些方法針對影像邊緣編碼 …

During the past decade the living style of many people has changed quite a lot due to the
rapid progresses in multimedia presentation and communications and the blooming of the …

In this paper, an image compression scheme is proposed, based on discrete cosine
transform (DCT). This scheme is a hybrid method, which combines vector quantization (VQ) …

Block truncation coding (BTC) is an efficient image compression algorithm that generates a
constant output bit-rate. For color image compression, vector quantization (VQ) is exploited …

This paper propose a novel vector-quantized block truncation coder for image data
compression. A data compression ratio of about 3-6 times larger than that of the BTC can be …

Everyday, enormous amount of information is stored, processed, and transmitted digitally.
This information requires high bandwidth and large volume of storage capacity. Designing …

An adaptive discrete cosine transform (DCT) method for image compression is presented.
Clustering technique based on vector quantization (VQ) is used to reconstruct binary …