Image restoration techniques process degraded images to highlight obscure details or
enhance the scene with good contrast and vivid color for the best possible visibility. Poor …

Contrast enhancement is an important tool for producing informative and visually pleasing
images. However, conventional image contrast enhancement methods often sufferfrom the …

Contrast in visible images is one of the most relevant characteristics of visual signals. Since
the pioneering works performed in vision psychology and optics, different definitions have …

Perceptual image quality assessment (IQA) uses a computational model to assess the
image quality in a fashion consistent with human opinions. A good IQA model should …

The complicated underwater environment and lighting conditions lead to severe influence
on the quality of underwater imaging, which tends to impair underwater exploration and …

Objective: Conventional mammogram enhancement methods use transform-domain
filtering, which possibly produce some artifacts or not well highlight all local details in …

Color image enhancement has been very challenging for researchers in imaging systems. In
this paper, optimal weighted multi-exposure histogram equalization model is proposed for …

In recent years, the fractional order derivative has been introduced for image enhancement.
It was proved that the medical image enhancement method based on the fractional order …

Visual perception is a key component for many underwater applications. However, visual
imaging data typically suffer from different types of distortion, which seriously affect their …

In this paper, a new extension of logarithmic image processing (LIP) model, called
Symmetric Logarithmic Image Processing (SLIP), is proposed. Inspired by the previously …