Results 51 to 60 of about 681,778 (171)
A deep learning approach for virtual contrast enhancement in Contrast Enhanced Spectral Mammography
Contrast Enhanced Spectral Mammography (CESM) is a dual-energy mammographic imaging technique that first needs intravenously administration of an iodinated contrast medium; then, it collects both a low-energy image, comparable to standard mammography, and a high-energy image.
Aurora Rofena +6 more
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Fast contrast enhancement by adaptive pixel value stretching
In this article, we propose a fast and effective method for digital image contrast enhancement. The gray-level dynamic range of contrast-distorted images is extended maximally via adaptive pixel value stretching.
Gang Cao +3 more
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FUZZY BASED CONTRAST STRETCHING FOR MEDICAL IMAGE ENHANCEMENT [PDF]
Contrast Stretching is an important part in medical image processing applications. Contrast is the difference between two adjacent pixels. Fuzzy statistical values are analyzed and better results are produced in the spatial domain of the input image. The
T.C. Raja Kumar +2 more
doaj
Diffeomorphic Registration of Images with Variable Contrast Enhancement
Nonrigid image registration is widely used to estimate tissue deformations in highly deformable anatomies. Among the existing methods, nonparametric registration algorithms such as optical flow, or Demons, usually have the advantage of being fast and ...
Guillaume Janssens +4 more
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Underwater images often suffer from color casts, insufficient contrast, and blurred details due to wavelength-dependent absorption and scattering, which limits their use in marine observation and underwater target recognition.
Fengxu Guan +3 more
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DCT Underwater Image Enhancement Based on Attenuation Analysis
Underwater images often suffer from color distortion, reduced contrast, and blurred details due to the selective absorption and scattering of light by water, which limits the performance of underwater visual tasks.
Leyuan Wang +3 more
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A NON-LINEAR TECHNIQUE FOR THE ENHANCEMENT OF EXTREMELY NON-UNIFORM LIGHTING IMAGES
At night scenes and under nonuniform lighting conditions, either the low intensity areas or the high intensity areas cannot be clearly seen. Various image processing techniques have been developed to recover the meaningful
Osman Nuri Uçan , Ender Öğüşlü
doaj
MR Image Contrast Enhancement by Wavelet-based Contourlet Transform [PDF]
The contrast of magnetic resonance (MR) image local regions is low, edges blurred and image contains noise. To improve image contrast of local regions and solve the problem of noise enlarging, an MR image contrast enhancement algorithm by wavelet-based ...
Zhongliang Luo, Yingbiao Jia
doaj
Nitrous oxide myelopathy: A pernicious contrast enhancement
Yachar Dawudi +4 more
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تطویر طریقة تقلیدیة مستخدمة فی رفع الضوضاء لتحسین تباین الصور الملونة
Hanan Ali +3 more
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