https://blog.csdn.net/Eastmount/article/details/73392106?locationNum=5&fps=1
可以使用vmin和vmax来达到和matlab的imshow中[]一样的效果,将小于vmin的量化成黑色,大于vmax的量化成白色:
plt.imshow(im, cmap = plt.get_cmap(“gray”), vmin = 100, vmax = 150)
https://www.bbsmax.com/A/pRdBo8N2zn/