def binarizing(img, threashold):

img = img.convert("L") # 转灰度

pixdata = img.load()

w, h = img.size

for y in range(h):

for x in range(w):

if pixdata[x, y] < threashold:

pixdata[x, y] = 0

else:

pixdata[x, y] = 255

return img

def removeFrame(img, width):

'''

:param img:

:param width: 边框的宽度

:return:

'''

w, h = img.size

pixdata = img.load()

for x in range(width):

for y in range(0, h):

pixdata[x, y] = 255

for x in range(w - width, w):

for y in range(0, h):

pixdata[x, y] = 255

for x in range(0, w):

for y in range(0, width):

pixdata[x, y] = 255

for x in range(0, w):

for y in range(h - width, h):

pixdata[x, y] = 255

return img

处理后的结果

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