The revision of conversion formula from RGB color space to HSV color space;

A new image pre-processing method based on linear transformation of YUV color space;

Fast face detection using skin-color-model in the color space;

Automatic image segmentation based on RGB color space;

Gray level transform algorithm basing on hue/saturation/luminance color space;

Then,based on the features of H and S sub-channels of HSV color space,this paper uses K-means algorithm to classify those areas into nine parts.

The algorithm employs information of the color image in HSV color space to construct a five_scale gray image, pre_processes the image with morphological method, then locates and segments the vehicle license plate by analyzing and discriminating the statistical_letter_frequency property of every possible regions.

This paper introduces HSV color space and an algorithm of automatic recognition character color.

In this paper, through on-line skin-color training technique, the filter based on feature distance in HSV color space erases much color noise due to digital vision systems, and a skin-color statistic model of current terminal user is achieved precisely after color information of training region is analyzed.

On the basis of analysis and comparison of the existing algorithms, a new visualization method of trees using HSV color space based on IBR is presented.