Monday, 17 February 2020

MATLAB code of Embedded zerotree code (EZW) for image compression

Data compression is the most important factor in the recent era of digital technology. Image compression is used for reducing storage space required to store. In this image compression, various techniques are evolved. Most of the image compression techniques are used in various applications. JPEG (Joint Photographic Expert Group) is used in various devices for image compression.

Embedded zerotree coding is used for encoding and decoding purpose. After image transformation encoding needs to be introduced. The following figure shows the encoding with EZW.

Figure: Block Diagram of Image compression using EZW

MATLAB Implementation:

Figure: Blank GUI of EZW

Figure: GUI of EZW

YouTube Video:

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