Firstly,the color image in RGB color format is converted to HSI color format,and a binary state feature matrix about the color image is brought up which has the same size as the color image.

• 首先将彩色图像从RGB颜色空间转换到HSI颜色空间,同时生成一个与彩色图像大小相同的二值化状态特征矩阵,根据车牌的色彩特征,调整状态特征矩阵;