图片转txt文本

from PIL import Image
import numpy as np


path='out.png'
img = Image.open(path)
image_arr = np.array(img)
image_num=list(image_arr.reshape(image_arr.size))



while 1:
    if image_num[-1]==0  and image_num[-2]==0:
        if image_num[-3]==0:
           image_num=image_num[:-2]
        else:
           image_num=image_num[:-1]
    else:
        break


cachedata=''
data=''''''
for x in image_num:
    num1=hex(int(x))[2:]
    if len(num1)<2:
        num1='0'+num1
    cachedata=cachedata+num1

for y in range (int(len(cachedata)/4)):
    data=data+chr(int('0x'+cachedata[4*y:4*(y+1)],16))
        
with open('图解密文.txt','w',encoding='UTF-8') as file:
    file.write(data)
    file.close()
    
print('图转文完成，程序结束！')