A Comparative Analysis of Image Compression using PCM and DPCM

Gbaranwi Barima Precious; Kabari Ledisi Giok

doi:10.52589/BJCNIT-KYUR6RDW

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A Comparative Analysis of Image Compression using PCM and DPCM

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Publication Date: 2021-07-20

DOI: 10.52589/BJCNIT-KYUR6RDW

Volume/Issue: Volume 4, Issue 1 (2021)

Page No: 60 - 67

Journal: British Journal of Computer, Networking and Information Technology

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Abstract:

The quality of the signal is essential in digital communication and signal processing. The transmission channel is also important. Modulation is used for effectively transmission of signal. There exist several types of modulation techniques. One of such is the pulse code modulation (PCM). The performance of PCM is however affected by quantization error and noise in the transmission channel, which affects the quality of the output. Against this backdrop, this paper presents the use of differential pulse code modulation (DPCM) so as to address the limitation of pulse code modulation. The simulation environment is MATLAB 2018a. The MATLAB Simulink is used to design the PCM and DPCM systems using appropriate digital processing blocks. The DPCM system shows a significant improvement in terms of error reduction and quality of output.

Keywords:Digital Signal ProcessingImage CompressionPCMDPCMSNRSimulinkMATLAB.

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Authors retain copyright in their articles and have unrestricted rights to reuse, republish, archive, share, and distribute their work after publication.
All articles are published open access under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence, which permits use, sharing, adaptation, distribution, and reproduction in any medium or format, including for commercial purposes, provided appropriate credit is given to the original author(s) and source.

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Copyrights

Authors retain copyright in their articles and have unrestricted rights to reuse, republish, archive, share, and distribute their work after publication.
All articles are published open access under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence, which permits use, sharing, adaptation, distribution, and reproduction in any medium or format, including for commercial purposes, provided appropriate credit is given to the original author(s) and source.