[Demo] Wrong set of seedpoint for cv2.floodFill

Hi there,

Thanks for this implementation! I ran into a small problem running the demo: the cv2.floodFill was throwing errors saying the seedpoint had wrong values. Investigating a bit, I wonder if this section below https://github.com/jfzhang95/DeepGrabCut-PyTorch/blob/master/demo.py#L97-L100 should not be commented.

Since left, right, up, down are used to put the seedpoint, if you leave this section uncommented (and that your monitor has more than twice the amount of pixels than the displayed image), opencv throws the mentioned error:

cv2.error: OpenCV(3.4.5) /io/opencv/modules/imgproc/src/floodfill.cpp:509: error: (-211:One of arguments' values is out of range) Seed point is outside of image in function 'floodFill'

Commenting the section fixes the error as the seedpoint changes from coordinates of 1000+ pixels down back to image dimensions:

I’m unsure about how others managed to run the demo without commenting it though.

[pkjplayer]

Hello, I met the same problem as you, how do you solve it

[frgfm]

Hi @pkjplayer I tried, and pressing space works perfectly! The suggestion I made earlier gives the same result without pressing the key. Good catch anyway, I’ll close the issue