Edge detection of color image based on HI*S* color space

Multi-colored model is also known as color space or color model, an effective approach for abstract representation and color description. The theory of color space is the rationale basic of processing of color image, therefore, it is of great importance to choose suitable color space before analyzing the color image. Moreover, there are various color spaces with different effects respectively can be used to describe color. The most basic color model is the RGB color models, namely, the red-green-blue color space, while all other color models derive from the transformation of linear or nonlinear. One of the more common color spaces is the HIS, namely, the color-brightness-saturation model. © 2012 Springer-Verlag London Limited.