Demosaicking is the process of reconstructing a full resolution color image from the sampled data acquired by a digital camera that apply a color filter array to a single sensor. In this paper, we propose a regularization approach to demosaicking, making use of some prior knowledge about natural color images, such as smoothness of each single color component and correlation between the differen...

A training method for robust recognition of color uniforms of soccer robots is proposed in this paper. Surface illuminative conditions of playground in competition environment are tested by training before competition. Soccer robots with different single color uniforms move on the playground along the planned trajectory, then color information of the moving robot in different positions on the p...

The most popular technique for image retrieval in a database of color images is the comparison of images based on their color histogram. The color histogram describes the distribution of colors in the color space of a color image. In the most image retrieval systems, the color histogram is used to compute similarities between the query image and all the images in the database. But, small change...

As past years we participated to the high-level feature extraction task and we pursued on the fusion of classifier outputs. New for this year is an experiment with a twodimensional Hidden Markov Model. Altogether we submitted seven runs. Three runs was based on the SVM model, another three was based on the HMM and one run was done by fusing HMM results with the SVM. To compile the runs, color a...

Color inconsistency between views is an important problem to be solved in multi-view video imaging application, such as free viewpoint television. Up to now, some color correction methods have been proposed mainly for consistent color appearance or high coding efficiency, in which the mean, variance, or covariance information are used to transfer color information. In this paper, by using color...

This paper proposes an efficient two stage demosaicing method to interpolate color filter array images. The proposed method based on the edge sensing technique improves the interpolation performance by adopting the color difference model for a green channel as well as a red/blue channel. In particular, the green channel interpolation method with a new concept includes the gradient operator, whi...

In a single-chip digital color camera, a color filter array (CFA) is used to obtain sampled spectral components (red, green and blue) in an interleaved fashion. A color demosaicing operation is then carried out to determine the missing spectral components at every location. One of the problems in color demosaicing is that many of the interpolated images are affected by colored artifacts near th...

Textured surface analysis is essential for many applications. In this paper, we present a three-dimensional recovery approach for real textured surfaces based on photometric stereo. The aim is to be able to measure the textured surfaces with a high degree of accuracy. For this, we use a color digital sensor and principles of color photometric stereo. This method uses a single color image, inste...

The primary issue involved in image and signal processing is to efficiently remove noise from a digital color image while preserving its features. A fuzzy filter is presented for the reduction of additive noise for digital color images. The filter consists of two sub filters. The first sub filter computes fuzzy distances among the color components of the central pixel and its neighborhood. Thes...