中位数近似算法实现的背景减除。matlab代码。-Median approximation algorithm for background subtraction. matlab code.

matlab进行图像的加减乘除算法，对图像进行亮度调节、图像叠加、提取背景亮度等。(Matlab carries out image multiplication and subtraction multiplication and division algorithm, adjusts the brightness of the image, overlay the image, and extract background brightness.)