另一个盲水印代码
https://github.com/chishaxie/BlindWaterMark

体验过程中发现，居然处理时间要10秒以上，你的代码处理图片则超级快，但水印不是对称的。

encode后输出图片正常（无法确定是否成功添加盲水印）
decode后输出水印异常（水印图片全黑）
图片是6000*4000，缩小至600*400后没有问题。
没测试master分支

Traceback (most recent call last):
File "C:/Users", line 54, in
main()

File "C:/Users", line 22, in main
img = options.img
AttributeError: 'Namespace' object has no attribute 'img'

after decode, Jpg can't see watermark. The pic is a vertical pic.

This program will throw the following error

File "encode.py", line 39, in encode
    x, y = range( height / 2 ), range(width)
TypeError: 'float' object cannot be interpreted as an integer

Then I Modify this line to

x, y = range( height / 2 ), range(width)

however, it throws a new error as follow:

File "C:\ProgramData\Anaconda3\lib\random.py", line 278, in shuffle
    x[i], x[j] = x[j], x[i]
TypeError: 'range' object does not support item assignment

谁来帮帮！！！