使用阈值操作将图像转换为二进制图像，查找对象的个数，伪彩色图像中标记矩阵的每一个对象都被映射为相关色调中的不同颜色-Convert image to binary image using threshold operation, find the number of objects, pseudo color image tag in matrix of each object is mapped for related tone of different colors

生成背景图，以表面图形式显示的背景，使用阈值操作将图像转换为二进制图像-Generation background, in the form of surface display background, using threshold operation convert image to binary image