在查看菜单中可以做彩色图像和灰度图像的直方图、灰度化。首先打开一幅位图，然后点击查看—>灰度直方图—>均衡化，即可。-In the View menu, you can do color and grayscale image histogram, gray-scale. First, open a bitmap, and then click View-> Histogram-> equalization, you can.