something wrong about dataset.py crop_img()

[YanShuang17]

something wrong about dataset.py crop_img()

[SakuraRiven]

@YanShuang17 Hi, thanks for reading these code.

1. The function is_cross_text is used to judge if the crop has cut the text region, instead of image boundary. If the text is split, the following gt generation (distance and angle) is complicated. I was little lazy at that time to handle such cases...
   Indeed, there are some vertices out of crop range. These points don't matter because cv2.fillPoly could automatically filter out outliers.

2. After while() loop, if cnt <1000(flag==False), it just means that the crop image doesn't cut any valid text region (label==1 vertices). And we don't have to care these ignored vertices.
   The remain vertices still have label==0 which would used in function get_score_geo.

I hope this answer helps. Umm, this repo may be not the best implementation and just for my practice. OTZ

[YanShuang17]

@SakuraRiven Thanks for your explanation!
Sorry, Indeed I didn't read codes about the latter gt generation part, didn't notice cv2.fillPoly(), I just read the data augmentation part and feel something wrong...now I understand, thank you!