QUANTIZATION METHOD AND IMAGE RETRIEVAL BASED ON RGB AND HSV COLOR MODEL

摘要

In order to quantize reasonably the color model space and to solve the reduction of dimension of color histogram, the improved algorithm of quantization based on the both RGB and HSV color models is proposed in this paper. The algorithm can remove the repetitious vectors of compost in quantization process. While quantizing evenly model space, we can bring the compression of quantization dimension into full play and guarantee not to lose the basic color of image histogram. The experimental results show that this algorithm can improve the retrieval speed and precision of system by a relatively big margin.