Introduction - If you have any usage issues, please Google them yourself
An image including the target object, have the background noise, in order from the multi-valued digital image directly to extract the target objects, the most commonly used method is to set a threshold T, with T the image data divided into two parts: large pixel in the T group and T is less than the pixel group. This is study of gray-scale transformation of the most special method, known as image binarization