–In this paper, we present the architecture and design of a color space conversion module. The color space converter module is used for changing the image from RGB color space to YCbCr color space. The color space conversion module was designed using VHDL and was implemented on an FPGA. This design methodology helped us to achieve faster the time to market and also the ability to reuse one phys...

Traditionally, it was hard for image segmentation to suit the cotton image segmentation of foreign fibers. To solve this problem, this paper proposed an image segmentation method of foreign fibers based on HSV color space. The value of foreign fibers images’ S channel was enhanced in this method to improve the contrast of foreign fiber and its background which help the subsequent image segmenta...

We present methods to estimate perceptual uniformity of color spaces and to derive a perceptually uniform RGB space using geometrical criteria defined in a logarithmic opponent color representation.

This paper presents a novel FTT (Feature Triangle Tracking) algorithm to track the eyes, mouth and pose of a fatigue driver. The proposed method uses the motion information to localize the face region, and the face region is processed in YCrCb color space to determine the locations of the eyes and mouth. According to geometrical relationships of facial components and the varied pose of the driv...

This paper proposes a novel approach to color texture characterization and classification. Rather than developing new textural features, we propose to derive a family of new, reduced dimensionality color spaces (that we call ), that allow a good classification performance by the use of classical energy-distribution features, defined in a scalar spectral domain. The dimensionality reduction appr...

We derive colour spaces of the hue-colourfulness-luminance type, on the basis of a four-dimensional hypercube I (I = [0, 1]). The hypercube corresponds to a tetrachromatic colour system, analogous to the three-dimensional RGB cube. In the first derived space the colourfulness is chromatic saturation while in the second one, colourfulness refers to the vividness of the colour, even if it is achr...

Natural images in the colour space Y UV have been observed to have a non-Gaussian, heavy tailed distribution (called ’sparse’) when the filter