a jpg pic can't see watermark

[idonkeyliu]

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

[linyacool]

Jpg format is lossy compression , you'd better use some lossless compression formats like bmp, png, gif.

[idonkeyliu]

OK, thank. I'll have a try.

[pxpy]

PS C:\Users\panxin\Desktop> python encode.py --image 3d.tif --watermark wm.png --result jm.tif libpng warning: iCCP: known incorrect sRGB profile Traceback (most recent call last): File "encode.py", line 54, in main() File "encode.py", line 30, in main encode(img, wm, res, alpha) File "encode.py", line 39, in encode x, y = range(height / 2), range(width) TypeError: 'float' object cannot be interpreted as an integer

[linyacool]

@pxpy Could you please show me your picture ? My email : xxbbb@vip.qq.com

[Zola]

I was verified that jpeg format supported.

something wrong when I add argument -- alpha

$python encode.py --image ori.jpg --watermark watermark.jpg --result res.jpg --alpha 5
Traceback (most recent call last):
  File "encode.py", line 55, in <module>
    main()
  File "encode.py", line 31, in main
    encode(img, wm, res, alpha)
  File "encode.py", line 50, in encode
    res_f = img_f + alpha * tmp
TypeError: ufunc 'multiply' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

[linyacool]

@Zola Sorry for that, now I have fixed it.

[yejunlei2008]

The Python3 version of the blind watermark can be used, but it has no effect. It is not the image range is wrong or the watermark cannot be loaded. I hope I can fix it, or I need to know which libraries need to be installed.