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This paper presents the development of a new algorithm for Gaussian based color image enhancement system. The algorithm has been designed into architecture suitable for FPGA/ASIC implementation. The color image enhancement is achieved by…

硬件体系结构 · 计算机科学 2014-09-16 M. C. Hanumantharaju , M. Ravishankar , D. R. Rameshbabu

Image enhancement is an important image processing technique that processes images suitably for a specific application e.g. image editing. The conventional solutions of image enhancement are grouped into two categories which are spatial…

计算机视觉与模式识别 · 计算机科学 2016-09-14 Hui Li , Xiaomeng Wang , Weifeng Liu , Yanjiang Wang

Phase contrast imaging seeks to reconstruct the complex refractive index of an unknown sample from scattering intensities, measured for example under illumination with coherent X-rays. By incorporating refraction, this method yields…

数值分析 · 数学 2018-11-06 Simon Maretzke

This paper deals with enhancement of images with poor contrast and detection of background. Proposes a frame work which is used to detect the background in images characterized by poor contrast. Image enhancement has been carried out by the…

计算机视觉与模式识别 · 计算机科学 2012-03-13 K. Sreedhar , B. Panlal

Existing image-to-image (I2I) translation methods achieve state-of-the-art performance by incorporating the patch-wise contrastive learning into Generative Adversarial Networks. However, patch-wise contrastive learning only focuses on the…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Chen Zhao , Wei-Ling Cai , Zheng Yuan

This paper proposes a novel image contrast enhancement method based on both a noise aware shadow-up function and Retinex (retina and cortex) decomposition. Under low light conditions, images taken by digital cameras have low contrast in…

计算机视觉与模式识别 · 计算机科学 2018-11-09 Chien Cheng Chien , Yuma Kinoshita , Sayaka Shiota , Hitoshi Kiya

Inferior soft-tissue contrast resolution is a major limitation of current CT scanners. The aim of the study is to improve the contrast resolution of CT scanners using dual-energy acquisition. Based on dual-energy material decomposition, the…

医学物理 · 物理学 2016-11-15 Wei Zhao , Lu Wan , Bo Zhang , Qiude Zhang , Tianye Niu

This paper presents a new approach for contrast enhancement of spinal cord medical images based on multirate scheme incorporated into multiscale retinex algorithm. The proposed work here uses HSV color space, since HSV color space separates…

计算机视觉与模式识别 · 计算机科学 2014-08-14 Sreenivasa Setty , N. K Srinath , M. C Hanumantharaju

Principle objective of Image enhancement is to process an image so that result is more suitable than original image for specific application. Digital image enhancement techniques provide a multitude of choices for improving the visual…

计算机视觉与模式识别 · 计算机科学 2010-03-23 Raman Maini , Himanshu Aggarwal

We present a method named iComMa to address the 6D camera pose estimation problem in computer vision. Conventional pose estimation methods typically rely on the target's CAD model or necessitate specific network training tailored to…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Yuan Sun , Xuan Wang , Yunfan Zhang , Jie Zhang , Caigui Jiang , Yu Guo , Fei Wang

One of the major open problems in computer vision is detection of features in visually impaired images. In this paper, we describe a potential solution using Phase Stretch Transform, a new computational approach for image analysis, edge…

计算机视觉与模式识别 · 计算机科学 2017-06-16 Madhuri Suthar , Mohammad Asghari , Bahram Jalali

This paper presents a super-efficient spatially adaptive contrast enhancement algorithm for enhancing infrared (IR) radiation based superficial vein images in real-time. The super-efficiency permits the algorithm to run in consumer-grade…

计算机视觉与模式识别 · 计算机科学 2018-03-02 A. M. R. R. Bandara , K. A. S. H. Kulathilake , P. W. G. R. M. P. B. Giragama

In this paper a quaternion approach of enhancement method is proposed in which color in the image is considered as a single entity. This new method is referred as the alpha-rooting method of color image enhancement by the two-dimensional…

图像与视频处理 · 电气工程与系统科学 2018-07-24 Artyom M. Grigoryan , Aparna John , Sos S. Agaian

As an efficient image contrast enhancement (CE) tool, adaptive gamma correction (AGC) was previously proposed by relating gamma parameter with cumulative distribution function (CDF) of the pixel gray levels within an image. ACG deals well…

多媒体 · 计算机科学 2022-08-31 Gang Cao , Lihui Huang , Huawei Tian , Xianglin Huang , Yongbin Wang , Ruicong Zhi

Color in an image is resolved into 3 or 4 color components and 2-Dimages of these components are stored in separate channels. Most of the color image enhancement algorithms are applied channel-by-channel on each image. But such a system of…

计算机视觉与模式识别 · 计算机科学 2017-07-18 Artyom M. Grigoryan , Aparna John , Sos S. Agaian

Image retargeting aims at altering an image size while preserving important content and minimizing noticeable distortions. However, previous image retargeting methods create outputs that suffer from artifacts and distortions. Besides, most…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Mohammad Reza Naderi , Mohammad Hossein Givkashi , Nader Karimi , Shahram Shirani , Shadrokh Samavi

In this paper, we propose a new variational model for image reconstruction by minimizing the $L^1$ norm of the \emph{Weingarten map} of image surface $(x,y,f(x,y))$ for a given image $f:{\mathrm{\Omega}}\rightarrow \mathbb R$. We…

数值分析 · 数学 2022-04-07 Qiuxiang Zhong , Ryan Wen Liu , Yuping Duan

Shift-and-add is an approach employed to mitigate the phenomenon of resolution degradation in images acquired through a turbulent medium. Using this technique, a large number of consecutive short exposures is registered below the coherence…

天体物理仪器与方法 · 物理学 2015-05-15 A. Popowicz , A. R. Kurek , A. Pollo , B. Smolka

MRI images of the same subject in different contrasts contain shared information, such as the anatomical structure. Utilizing the redundant information amongst the contrasts to sub-sample and faithfully reconstruct multi-contrast images…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Xinwen Liu , Jing Wang , Fangfang Tang , Shekhar S. Chandra , Feng Liu , Stuart Crozier

Compared to color images captured by conventional RGB cameras, monochrome images usually have better signal-to-noise ratio (SNR) and richer textures due to its higher quantum efficiency. It is thus natural to apply a mono-color dual-camera…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Ze-Hua Sheng , Hui-Liang Shen , Bo-Wen Yao , Huaqi Zhang