Fast algorithm for YCbCr to HSV conversion based on fix-point DSP
一种基于定点DSP的YCbCr到HSV的快速转换算法*

This paper proposed a fast algorithm for YCbCr space to HSV space conversion based on the analysis of the algorithms between YCbCr to RGB and RGB to HSV conversions.Rather than using the floating point multiplication,it used the shift operator and look-up table method respectively in this algorithm,so that improved the efficiency on fixed-point DSPs significantly.In addition,Y component was not involved in the calculation during the conversion of the algorithm,thereby further reduced the computational complexity.Finally,according to the experiments,it obtained the consequence that this algorithm could save 80% of the computing time than the traditional algorithm on fixed-point DSP platform and 46% of the computing time on PC platform.Therefore,the proposed algorithm can be used in high real-time video analysis systems,such as license plate recognition and flame detection.