A Comprehensive Review of Image Enhancement Techniques

TL;DR

This paper reviews various image enhancement techniques, focusing on spatial domain methods like point processing and histogram adjustments, to improve visual quality based on application needs.

Contribution

It provides a comprehensive overview of image enhancement concepts and algorithms, emphasizing spatial domain techniques and their applications.

Findings

Highlights importance of choosing appropriate enhancement techniques

Discusses algorithms for point processing and histogram methods

Provides insights into application-specific enhancement strategies

Abstract

Principle objective of Image enhancement is to process an image so that result is more suitable than original image for specific application. Digital image enhancement techniques provide a multitude of choices for improving the visual quality of images. Appropriate choice of such techniques is greatly influenced by the imaging modality, task at hand and viewing conditions. This paper will provide an overview of underlying concepts, along with algorithms commonly used for image enhancement. The paper focuses on spatial domain techniques for image enhancement, with particular reference to point processing methods and histogram processing.