A two-stage histogram equalization enhancement scheme for feature preservation in retinal fundus images

OO Sule, AE Ezugwu - Biomedical Signal Processing and Control, 2023 - Elsevier
Early detection of ophthalmologic complications in the retinal fundus images is crucial and
requires a quality image for accurate analysis and diagnosis. This often proves tricky due to …

Enhancement method for color retinal fundus images based on structural details and illumination improvements

B Bataineh, KH Almotairi - Arabian Journal for Science and Engineering, 2021 - Springer
Retinal images show an essential role in Ophthalmology to diagnosis wide set of diseases.
In this direction, using retinal images in computerized techniques increases the ability of …

Retinal image enhancement using adaptive histogram equalization tuned with nonsimilar grouping curvelet

A Anilet Bala, P Aruna Priya… - International Journal of …, 2021 - Wiley Online Library
Fundus images are broadly used by medical ophthalmologists to detect and assess any
customary abnormalities. Fundus imaging sensors capture the eye's rigid portion, which …

Color retinal image enhancement based on luminosity and contrast adjustment

M Zhou, K Jin, S Wang, J Ye… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Objective: Many common eye diseases and cardiovascular diseases can be diagnosed
through retinal imaging. However, due to uneven illumination, image blurring, and low …

A hybrid method for improving the luminosity and contrast of color retinal images using the JND model and multiple layers of CLAHE

K Rao, M Bansal, G Kaur - Signal, Image and Video Processing, 2023 - Springer
Retinal imaging can be used to identify a variety of common eye and cardiac disorders.
However, owing to non-uniform or poor illumination and low contrast, low-quality retinal …

Optimal Luminosity and Contrast Reformation System for Retinal Fundus Image Intensity Enhancement

R Kumar, AK Bhandari, M Chouksey - Wireless Personal Communications, 2024 - Springer
Image improvement is essential in various computer vision and image analysis applications.
These include healthcare, automotive, security and surveillance, retail and E-commerce …

Retinal fundus image enhancement with image decomposition and visual adaptation

J Wang, YJ Li, KF Yang - Computers in Biology and Medicine, 2021 - Elsevier
Retinal fundus photography has been widely used to diagnose various prevalent diseases
because many important diseases manifest themselves on the retina. However, the quality …

Fundus image enhancement using visual transformation and maximum a posterior estimation

R Kumar, AK Bhandari - Biomedical Signal Processing and Control, 2023 - Elsevier
Fundus imaging is used to diagnose many common diseases in human vision. Because of
uneven brightness, blur effect, and low contrast, fundus images are not helpful for diagnosis …

Particle swarm optimization based retinal image enhancement

V Sathananthavathi, G Indumathi - Wireless Personal Communications, 2021 - Springer
Rear portion of the eye can be pictured by the retinal fundus imaging technique. The retinal
fundus images provide clear description about the retinal blood vessels and optic disc …

Retinal fundus image enhancement using the normalized convolution and noise removing

P Dai, H Sheng, J Zhang, L Li, J Wu… - International journal of …, 2016 - Wiley Online Library
Retinal fundus image plays an important role in the diagnosis of retinal related diseases.
The detailed information of the retinal fundus image such as small vessels, microaneurysms …