نتایج جستجو برای: color mapping

تعداد نتایج: 314874  

2005
Maya R. Gupta Stephen Upton Jayson Bowen

We investigate design and estimation issues for using the standard color management profile architecture for general custom image enhancement. Color management profiles are a flexible architecture for describing a mapping from an original colorspace to a new colorspace. We investigate use of this same architecture for describing color enhancements that could be defined by a non-technical user u...

2005
Mark Grundland Neil A. Dodgson

Histogram warping is a novel histogram specification technique for use in color image processing. As a general purpose tool for color correction, our technique constructs a global color mapping function in order to transform the colors of a source image to match a target color distribution to any desired degree of accuracy. To reduce the risk of color distortion, the transformation takes place ...

Video-based face recognition has attracted significant attention in many applications such as media technology, network security, human-machine interfaces, and automatic access control system in the past decade. The usual way for face recognition is based upon the grayscale image produced by combining the three color component images. In this work, we consider grayscale image as well as color s...

1998
Gabriel Marcu

The problem of gamut mapping is of interest in achieving an optimum color reproduction whenever a translation from one device (source) to another device (destination) is requested and the source gamut differs from destination gamut. For printing applications, if the ICC profile specifications are used, gamut mapping is applied to build the color tables that characterize the printing device. Wit...

2011
Hung-Shing Chen Shih-Han Chen

Hung-Shing Chen Shih-Han Chen Abstract — Owing to the fast developments of computer networks and color imaging technologies, there is a tendency towards remote proofing in the printing or textile industries. More cases such as cross-display color matching will occur in the future information society. The problems of color mismatching we usually find in cross-display devices have been widely dis...

2008
Arjan Gijsenij Theo Gevers Joost van de Weijer

Color constancy aims to compute object colors despite differences in the color of the light source. Gamut-based approaches are very promising methods to achieve color constancy. In this paper, the gamut mapping approach is extended to incorporate higher-order statistics (derivatives) to estimate the illuminant. A major problem of gamut mapping is that in case of a failure of the diagonal model ...

2010
Mei-Chun Lo Tsung-Hsien Hsieh Ruey-Kuen Perng Jiong-Qiao Chen

The aim of this research is to derive illuminant-independent type of HDR imaging modules which can optimally multispectrally reconstruct of every color concerned in high-dynamic-range of original images for preferable cross-media color reproduction applications. Each module, based on either of broadband and multispectral approach, would be incorporated models of perceptual HDR tone-mapping, dev...

2007
Qing Luan Fang Wen Daniel Cohen-Or Lin Liang Ying-Qing Xu Harry Shum

In this paper, we present an interactive system for users to easily colorize the natural images of complex scenes. In our system, colorization procedure is explicitly separated into two stages: Color labeling and Color mapping. Pixels that should roughly share similar colors are grouped into coherent regions in the color labeling stage, and the color mapping stage is then introduced to further ...

2003
Vivek Srivastava Sarang Lakare Arie Kaufman

We present a novel approach for assigning realistic colors to a scalar volume. Color assignment is typically done using a transfer function. However, the linear mapping between the scalar value and color produces unrealistic-looking results. In our approach, we use a reference multichannel scalar volume and its corresponding color volume to build the mapping. Using the Visible Human Male (VHM) ...

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