Results 1 - 10 of 840

Learning to Detect A Salient Object

by Tie Liu, Jian Sun, Nan-ning Zheng, Xiaoou Tang, Heung-yeung Shum - In CVPR , 2007
"... Abstract We study visual attention by detecting a salient object in an input image. We formulate salient object detection as an image segmentation problem, where we separate the salient object from the image background. We propose a set of novel features including multi-scale contrast, centersurroun ..."
Abstract - Cited by 240 (12 self) - Add to MetaCart
Abstract We study visual attention by detecting a salient object in an input image. We formulate salient object detection as an image segmentation problem, where we separate the salient object from the image background. We propose a set of novel features including multi-scale contrast

A Multiscale Finite Element Method For Elliptic Problems In Composite Materials And Porous Media

by Thomas Y. Hou, Xiao-hui Wu - JOURNAL OF COMPUTATIONAL PHYSICS , 1997
"... In this paper, we study a multiscale finite element method for solving a class of elliptic problems arising from composite materials and flows in porous media, which contain many spatial scales. The method is designed to efficiently capture the large scale behavior of the solution without resolving ..."
Abstract - Cited by 312 (27 self) - Add to MetaCart
In this paper, we study a multiscale finite element method for solving a class of elliptic problems arising from composite materials and flows in porous media, which contain many spatial scales. The method is designed to efficiently capture the large scale behavior of the solution without

Investigations into Multi-Scale Retinex

by Kobus Barnard, Brian Funt - Color Imaging in Multimedia , 1999
"... The main thrust of this paper is to investigate the multi-scale retinex (MSR) approach to image enhancement to explain the effect of the processing from a theoretical standpoint. This leads to a new algorithm with fewer arbitrary parameters that is more flexible, maintains colour fidelity, and still ..."
Abstract - Cited by 13 (0 self) - Add to MetaCart
The main thrust of this paper is to investigate the multi-scale retinex (MSR) approach to image enhancement to explain the effect of the processing from a theoretical standpoint. This leads to a new algorithm with fewer arbitrary parameters that is more flexible, maintains colour fidelity

Contrast Enhancement by Multi-scale Adaptive Histogram Equalization

by Yinpeng Jin , Laura Fayad , Andrew Laine
"... An approach for contrast enhancement utilizing multi-scale analysis is introduced. Sub-band coefficients were modified by the method of adaptive histogram equalization. To achieve optimal contrast enhancement, the sizes of sub-regions were chosen with consideration to the support of the analysis fil ..."
Abstract - Cited by 16 (0 self) - Add to MetaCart
An approach for contrast enhancement utilizing multi-scale analysis is introduced. Sub-band coefficients were modified by the method of adaptive histogram equalization. To achieve optimal contrast enhancement, the sizes of sub-regions were chosen with consideration to the support of the analysis

Multi-scale image harmonization

by Kalyan Sunkavalli, Micah K. Johnson, Wojciech Matusik, Hanspeter Pfister - ACM Transactions on Graphics (SIGGRAPH , 2010
"... Figure 1: In traditional image compositing (a) a user applies geometric transformations to a source image (top) and inserts it into a target image (bottom). Tools such as the Photoshop Healing Brush use gradient domain compositing to ensure that the composite is seamless (b) but the inconsistencies ..."
Abstract - Cited by 17 (0 self) - Add to MetaCart
, these techniques can produce unrealistic results. In this work, we present a framework that explicitly matches the visual appearance of images through a process we call image harmonization, before blending them. At the heart of this framework is a multi-scale technique that allows us to transfer the appearance

Contrast Enhancement by Multi-scale Adaptive Histogram Equalization

by Yinpeng Jina, Laura Fayadb
"... An approach for contrast enhancement utilizing multi-scale analysis is introduced. Sub-band coefficients were modified by the method of adaptive histogram equalization. To achieve optimal contrast enhancement, the sizes of sub-regions were chosen with consideration to the support of the analysis fil ..."
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An approach for contrast enhancement utilizing multi-scale analysis is introduced. Sub-band coefficients were modified by the method of adaptive histogram equalization. To achieve optimal contrast enhancement, the sizes of sub-regions were chosen with consideration to the support of the analysis

A multi-scale and morphological gradient preserving contrast

by Bricola Jean-charles, Bilodeau Michel, Beucher Serge
"... This document outlines an algorithm which extends and enhances the regularised gradient introduced in [Rivest, 1992]. The regularised gradient is known to be a thin gradient. It has little noise, is multi-scale and therefore has been extensively used, for instance in the extraction of road markers [ ..."
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This document outlines an algorithm which extends and enhances the regularised gradient introduced in [Rivest, 1992]. The regularised gradient is known to be a thin gradient. It has little noise, is multi-scale and therefore has been extensively used, for instance in the extraction of road markers

A perceptual framework for contrast processing of high dynamic range images

by Rafał Mantiuk, Karol Myszkowski, Hans-Peter Seidel - IN APGV ’05: PROCEEDINGS OF THE 2ND SYMPOSIUM ON APPIED PERCEPTION IN GRAPHICS AND VISUALIZATION, ACM , 2005
"... Image processing often involves an image transformation into a domain that is better correlated with visual perception, such as the wavelet domain, image pyramids, multi-scale contrast representations, contrast in retinex algorithms, and chroma, lightness and colorfulness predictors in color appeara ..."
Abstract - Cited by 61 (8 self) - Add to MetaCart
Image processing often involves an image transformation into a domain that is better correlated with visual perception, such as the wavelet domain, image pyramids, multi-scale contrast representations, contrast in retinex algorithms, and chroma, lightness and colorfulness predictors in color

Luminance-Based Multi-Scale Retinex

by Brian Funt, Kobus Barnard, Michael Brockington, Vlad Cardei - PROCEEDINGS AIC COLOUR 97 KYOTO , 1997
"... Multi-scale retinex (MSR) processing has been shown to be an effective way to enhance image contrast, but it often has an undesirable desaturating effect on the image colours. A colourrestoration method [2,3] can help mitigate this effect, but our experience is that it simply leads to other problems ..."
Abstract - Cited by 7 (3 self) - Add to MetaCart
Multi-scale retinex (MSR) processing has been shown to be an effective way to enhance image contrast, but it often has an undesirable desaturating effect on the image colours. A colourrestoration method [2,3] can help mitigate this effect, but our experience is that it simply leads to other

Analysis and Improvement of Multi-Scale Retinex

by Kobus Barnard, Brian Funt - IN PROCEEDINGS OF THE IS&T/SID FIFTH COLOR IMAGING CONFERENCE: COLOR SCIENCE, SYSTEMS AND APPLICATIONS , 1997
"... The main thrust of this paper is to modify the multi-scale retinex (MSR) approach to image enhancement so that the processing is more justified from a theoretical standpoint. This leads to a new algorithm with fewer arbitrary parameters that is more flexible, maintains color fidelity, and still pres ..."
Abstract - Cited by 5 (1 self) - Add to MetaCart
The main thrust of this paper is to modify the multi-scale retinex (MSR) approach to image enhancement so that the processing is more justified from a theoretical standpoint. This leads to a new algorithm with fewer arbitrary parameters that is more flexible, maintains color fidelity, and still
Results 1 - 10 of 840