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393193

Increase contrast of low light image using modified histogram equalization

Article

Last updated: 18 Dec 2024

Subjects

-

Tags

Computer sciences physics

Abstract

Low-light images frequently experience poor visibility and reduced contrast, which results in a significant degradation of overall image quality. To address this challenge, this paper introduces a new algorithm designed to improve contrast in low-light images through a modified form of histogram equalization. The proposed method involves dividing the image into multiple layers and applying histogram equalization to each of these layers individually. By this process, local brightness levels are balanced effectively while preserving important image details. As a result, the algorithm generates visually increased images with improved clarity, brightness, and contrast. The effectiveness of the method has been demonstrated through experimental results, showing notable improvements over existing techniques. Various image quality metrics, such as the Naturalness Image Quality Evaluator ( NIQE) and the Colorfulness-based Patch Contrast Quality Index (CPCQI), were used to assess performance, confirming significant enhancements in image quality when compared to traditional methods in image evaluations scores

DOI

10.21608/abas.2024.327925.1052

Keywords

Histogram, image process, Contrast, low light image

Authors

First Name

Ahmed

Last Name

Madbouly

MiddleName

-

Affiliation

mathematics department , faculty of science, helwan university

Email

ammadbouly@yahoo.com

City

-

Orcid

-

Volume

3

Article Issue

1

Related Issue

48619

Issue Date

2024-06-01

Receive Date

2024-10-12

Publish Date

2024-06-01

Page Start

67

Page End

71

Online ISSN

2974-3672

Link

https://abas.journals.ekb.eg/article_393193.html

Detail API

https://abas.journals.ekb.eg/service?article_code=393193

Order

393,193

Type

Original Article

Type Code

2,609

Publication Type

Journal

Publication Title

Advances in Basic and Applied Sciences

Publication Link

https://abas.journals.ekb.eg/

MainTitle

Increase contrast of low light image using modified histogram equalization

Details

Type

Article

Created At

18 Dec 2024