Results 11 to 20 of about 12,352,701 (307)

Medical image enhancement using threshold decomposition driven adaptive morphological filter [PDF]

open access: yes, 2008
One of the most common degradations in medical images is their poor contrast quality. This suggests the use of contrast enhancement methods as an attempt to modify the intensity distribution of the image.
Mahmoud, Tarek A.   +4 more
core   +5 more sources

Delaunay triangulation based image enhancement for echocardiography images [PDF]

open access: yes, 2009
A novel image enhancement approach for automatic echocardiography image processing is proposed. The main steps include undecimated wavelet based speckle noise reduction, edge detection, followed by a regional enhancement process that employs Delaunay ...
Ahanathapillai, V.   +2 more
core   +3 more sources

Image resolution enhancement using dual-tree complex wavelet transform [PDF]

open access: yes, 2010
In this letter, a complex wavelet-domain image resolution enhancement algorithm based on the estimation of wavelet coefficients is proposed. The method uses a forward and inverse dual-tree complex wavelet transform (DT-CWT) to construct a high-resolution
Tjahjadi, Tardi, Çelik, Turgay
core   +1 more source

An investigation in satellite images based on image enhancement techniques

open access: yesEuropean Journal of Remote Sensing, 2020
In Satellite Images, enhancement plays a dynamic research topic in image processing. The aim of enhancement is to process an image so that the result is more suitable than original image for specific remote sensing application.
R. Ablin, C.Helen Sulochana, G. Prabin
doaj   +1 more source

Integrating deep learning and traditional image enhancement techniques for underwater image enhancement

open access: yesIET Image Processing, 2022
Underwater images usually suffer from colour distortion, blur, and low contrast, which hinder the subsequent processing of underwater information. To address these problems, this paper proposes a novel approach for single underwater images enhancement by
Zhenghao Shi   +3 more
doaj   +1 more source

Low-Illumination Image Enhancement Based on Deep Learning Techniques: A Brief Review

open access: yesPhotonics, 2023
As a critical preprocessing technique, low-illumination image enhancement has a wide range of practical applications. It aims to improve the visual perception of a given image captured without sufficient illumination.
Hao Tang   +5 more
doaj   +1 more source

Low‐light image enhancement for infrared and visible image fusion

open access: yesIET Image Processing, 2023
Infrared and visible image fusion (IVIF) is an essential branch of image fusion, and enhancing the visible image of IVIF can significantly improve the fusion performance. However, many existing low‐light enhancement methods are unsuitable for the visible
Yiqiao Zhou   +5 more
doaj   +1 more source

An enhancement method for low light images in coal mines

open access: yesGong-kuang zidonghua, 2023
Underground lighting in coal mines is limited. There is a large amount of dust and mist, resulting in low contrast, uneven lighting, weak detail information, and a large amount of noise in the collected images.
KONG Erwei   +3 more
doaj   +1 more source

Lighting the darkness in the sea: A deep learning model for underwater image enhancement

open access: yesFrontiers in Marine Science, 2022
Currently, optical imaging cameras are widely used on underwater vehicles to obtain images and support numerous marine exploration tasks. Many underwater image enhancement algorithms have been proposed in the past few years to suppress backscattering ...
Yaofeng Xie   +5 more
doaj   +1 more source

Contextual and variational contrast enhancement [PDF]

open access: yes, 2011
This paper proposes an algorithm which enhances the contrast of an input image using inter-pixel contextual information. The algorithm uses a two-dimensional (2D) histogram of the input image constructed using mutual relationship between each pixel and ...
Tjahjadi, Tardi   +3 more
core   +1 more source

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