from PIL import Image

def clipping(img, width):
    '''
    通過(guò)獲取像素點(diǎn),然后將像素點(diǎn)等于255(透明),從而完成修剪圖片的操作
    :param img: Image對(duì)象
    :param width: 要修剪的寬度
    :return:
    '''

    w, h = img.size
    pixdata = img.load()

     # 修剪左邊
     for x in range(width):
         for y in range(0, h):
             pixdata[x, y] = 255

     # 修剪右邊
     for x in range(w - width, w):
         for y in range(0, h):
             pixdata[x, y] = 255

    # 修剪上邊
    for x in range(0, w):
        for y in range(0, width):
            pixdata[x, y] = 255

    # 修剪下邊
    for x in range(0, w):
        for y in range(h - width, h):
            pixdata[x, y] = 255

    return img

img = Image.open(filepath)
img = clipping(img, 2)