python PILLOW

处理图片

http://pillow.readthedocs.io/en/latest/

from PIL import Image
#打开图片
im = Image.open('python.jpg')
#图片的尺寸
w, h = im.size
print('图像尺寸为%dx%d'%(w,h))

pix = im.load()
for x in range(w):
     for y in range(h):
        r = im.getpixel((x,y))[0]
        g = im.getpixel((x,y))[1]
        b = im.getpixel((x,y))[2]
        print('(%d,%d)像素点的RGB值为R=%d,G=%d,B=%d'%(x, y, r, g, b))