In this paper, adaptive unsharp masking using bilateral filter, edge-preserving smoothing
filter is proposed to reduce the overshoot and jagging artifact in sharpening images …

Contrast enhancement is a fundamental procedure in applications requiring image
processing. Indeed, image enhancement contributes critically to the success of subsequent …

The images, captured by camera, might suffer from poor contrast, saturation artefacts or
improper brightness. Hence, image enhancement becomes an important step to improve the …

This paper presents a new technique for contrast enhancement for color images called
histogram shifting with alpha rooting. The novelty in the presented method consists in …

The classical unsharp masking method of image contrast enhancement is based on the
addition of an amplitude scaled linear highpass filtered version of the image to itself …

Traditional histogram equalization may cause degraded results of over-enhanced images
under uneven illuminations. In this paper, a simple and effective image contrast …

Contrast enhancement plays an important role in image processing applications. This paper
proposes a low-complexity automatic method for contrast enhancement. The method …

Unsharp masking-based approaches are widely used in consumer electronics and printing
technology for increasing the sharpness of the image. In the classical approaches, such …

In order to improve medical image visual quality, this paper adopts an adaptive unsharp
mask algorithm for contrast enhancement of medical image. Our objective to employ an …

Contrast enhancement is a crucial image processing step for image quality control.
However, images enhanced by conventional contrast enhancement methods can have …