Comparison of Discrete Wavelet and Discrete Cosine Transform for Enhancement of Gray Image-Reference-Cited by-同舟云学术

Comparison of Discrete Wavelet and Discrete Cosine Transform for Enhancement of Gray Image

Published:2023-05-27 Issue: Volume: Page:157-161
ISSN:2581-9429
Container-title:International Journal of Advanced Research in Science, Communication and Technology
language:en
Short-container-title:IJARSCT

Author:

Nivedita V. Hippalgaonkar (Deshmukh) ¹,Archana S. Gaikwad ¹

Affiliation:

1. P. C. Polytechnic, Nigdi, Pune, India

Abstract

In this paper comparison of Discrete Wavelet and Discrete Cosine Transform for contrast enhancement of gray image is discussed and implemented using proposed mask. The technique converts the image into DCT domain and the DCT coefficients are modified using proposed mask then the enhanced image is reconstructed using inverse DCT. After comparing enhancement based on DCT with enhancement based on wavelet transform I found that the discrete cosine transform outperforms with better image quality and with highest PSNR value.

Publisher

Naksh Solutions

Subject

General Medicine

Reference6 articles.

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