Results 21 to 30 of about 2,730 (217)
An Improved Algorithm for Low-Light Image Enhancement Based on RetinexNet
Due to the influence of the environment and the limit of optical equipment, low-light images produce problems such as low brightness, high noise, low contrast, and color distortion, which have a great impact on their visual perception and the following ...
Hao Tang +3 more
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Lightness and Retinex Theory [PDF]
Sensations of color show a strong correlation with reflectance, even though the amount of visible light reaching the eye depends on the product of reflectance and illumination. The visual system must achieve this remarkable result by a scheme that does not measure flux. Such a scheme is described as the basis of retinex theory. This theory assumes that
E H, Land, J J, McCann
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Many different descriptions of Retinex methods of lightness computation exist. We provide concise MATLAB™ implementations of two of the spatial techniques of making pixel comparisons. The code is presented, along with test results on several images and a discussion of the results.
Brian V. Funt +2 more
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Retinex Low-Illumination Image Enhancement Algorithm Based on Light Image Estimation [PDF]
The images collected in low-illumination environment are limited in the contrast, and suffer from detail loss and noise interference.To address the problem, a Retinex-based method is proposed to improve illumination map estimation and realize low ...
HAN Mengyan, LI Liangrong, JIANG Kai
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Retinex Filtering of Underwater Images [PDF]
This is the third work of a series which is discussing the applications that a Retinex filter can have for enhancing images. In the first paper, we considered the images from microscopes. In the second, we discussed how a Retinex filtering can help us in
Sparavigna, Amelia Carolina +1 more
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Target recognitions in multiple camera CCTV using colour constancy [PDF]
People tracking using colour feature in crowded scene through CCTV network have been a popular and at the same time a very difficult topic in computer vision.
Merfort, Christian +8 more
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Retinex Based Image Enhancement via General Dictionary Convolutional Sparse Coding
Retinex theory represents the human visual system by showing the relative reflectance of an object under various illumination conditions. A feature of this human visual system is color constancy, and the Retinex theory is designed in consideration of ...
Jongsu Yoon, Yoonsik Choe
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Level set method with Retinex‐corrected saliency embedded for image segmentation
It can be a very challenging task when using level set method segmenting natural images with high intensity inhomogeneity and complex background scenes.
Dongmei Liu +3 more
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Research on Improved Retinex-Based Image Enhancement Method for Mine Monitoring
An improved Retinex fusion image enhancement algorithm is proposed for the traditional image denoising methods and problems of halo enlargement and image overexposure after image enhancement caused by the existing Retinex algorithm.
Feng Tian, Tingting Chen, Jing Zhang
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Accelerating the Retinex Algorithm with CUDA [PDF]
Recently, the television market trend is change to HD television and the need of the study on HD image enhancement is increased rapidly. To enhancement of image quality, the retinex algorithm is commonly used. That’s why we studied how to accelerate the retinex algorithm with CUDA on GPGPU (general purpose graphics processing unit).
Hyo-Seok Seo, Oh-Young Kwon
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