对复杂背景下的图像进行双边滤波，利用源图像与处理后的图像作差，实现对复杂背景下小目标的检测-First, deal with the image within complex background by bilateral filtering , then original Image subtract the image after bilateral filtering，realize small target detection under complex background

首先利用形态学开运算将图像中小于结构元素的亮点去掉，利用源图像与处理后的图像作差，对差图像进行阈值分割，得到二值图像，将二值图像中的一些干扰区域去掉，提取二值图像中的圆形区域，并在源图像上对小目标进行标记，实现对圆形亮目标的检测-Remove the area in the image smaller than structural element by morphologic open operation，receive image A，original image subtract imag

实现遥感图像的四则运算，包括图像的加法，减法，乘法和除法。-This program can achieve the image computation, including add, subtract, multiply and divide algorithm.

显现图像中灰度值较小的部分，示例图中的医学图像就可以很清晰的把血管展示出来。(Showing the image in the smaller part of the gray value, the sample image in the medical image can be very clear to show the blood vessels.)