An Enhanced Technique to Improve the Performance of Multi-image Compression Technique

Barman, Dibyendu; Hasnat, Abul; Barman, Bandana

doi:10.1007/978-981-19-2980-9_25

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…Table 3 Amount of storage space reduced using VQ [1], codebook modification [12], and VQ with codebook compression Image Amount of storage space reduced (percentage) VQ [1] CBM [12] Table 5 shows the SSIM between the original image and the encoded image using VQ, the CBM, and the new method. In terms of SSIM, the visual quality of compressed images using the new method and the VQ is almost similar.…”

Section: Resultsmentioning

confidence: 99%

“…Again, in 2022, Barman et al [12] developed another codebook update method that focused on the improvement of the visual quality of the decompressed image. It is applied to multiple images together.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Shah et al [9] compressed the VQ-generated codebook and index matrix further but the visual quality of the compressed image is affected reasonably. Also, Barman et al [12] reported the method where they developed a common codebook for multiple images. They further compressed the second part of the codebook containing the codewords with low frequencies.…”

Section: Literature Reviewmentioning

confidence: 99%

See 2 more Smart Citations

A Codebook Compression Method for Vector Quantization Algorithm

Abul Hasnat,

Dibyendu Barman,

Md Azizul Hoque

et al. 2024

Proc. eng. technol. innov.

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This study introduces a novel approach to enhance the compression ratio of the vector quantization (VQ) algorithm by specifically targeting the compression of its codebook. The VQ algorithm typically generates an index matrix and a codebook to represent compressed images. The proposed method focuses on reducing the size of the codebook, which comprises N codewords, each with elements quantized into four levels. Each 8-bit element in a codeword is compressed to 2-bits, and the encoded codeword is accompanied by the minimum value and a threshold value in the codebook. Experimental results on benchmark color images, such as baboon, airplane, Lena, and others, demonstrate a significant reduction of 62.50% in the size of the VQ codebook.

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