我使用 PIL 打开图像以提取几个位并将它们写入字符串。应该是,此代码将过滤除具有 (R<=1 && G<=1 && B<=1) 并采用每种颜色的最后一位的代码。问题是它不起作用。
from PIL import Image
def extract_bits(color, bitmask):
bitmask_len = len(bin(bitmask)[2:])
extracted_bits = bin(color & bitmask)[2:]
extracted_bits = '0' * (bitmask_len - len(extracted_bits)) + extracted_bits
return extracted_bits
if __name__ == '__main__':
img = Image.open('IMG_0707png')
pixels = list(img.getdata())
bits = ''
for i in range(0, len(pixels), 1):
r = pixels[i][0]
g = pixels[i][1]
b = pixels[i][2]
if not (r <= 1 and g <= 1 and b <= 1): continue
bits += extract_bits(r, 0x1)
bits += extract_bits(g, 0x1)
bits += extract_bits(b, 0x1)
bits += '0' * (8 - len(bits) % 8)
text = ''
for i in range(0, len(bits), 8):
text += chr(int(bits[i:i+8], 2))
print text
我环顾了这个问题,发现在我的情况下不起作用的解决方案。
img = Image.open(open('IMG_0707.png', 'rb'))
在这两种情况下,我都得到
File "<stdin>, line 1, in <module>"
File "<string>" line11, im <module>
File "c:\python27\lib\site-packages\PIL\Image.py", line 1980, in open
raise IOError("cannot identify image file")
IOError: cannot identify image file
我也尝试指定确切的路径,但没有运气。
img = Image.open(open("IMG_0707.png", 'rb'))
img = Image.open(open("c:\python27\IMG_0707.png", 'rb'))
img = Image.open(open("c:/python27/IMG_0707.png", 'rb'))
等等。如果有任何帮助,我将不胜感激。 图片,我正在尝试打开