Can get specify points' coordinate from output image using OpenCV remap?

Asked Aug 05 '19 at 04:32

Active Aug 05 '19 at 08:30

Viewed 218 times

I used OpenCV remap function to unwarp an image and I want to crop some specifies field on unwarp image. How can I convert exactly coordinate on origin image to unwarp image?

output = cv2.remap(img,xmap,ymap,cv2.INTER_LINEAR)

Example

edited Aug 05 '19 at 08:30

Nathan McCoy

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asked Aug 05 '19 at 04:32

Nguyễn Khang

Could you post source image and desired output? – Piotr Siekański Aug 05 '19 at 07:01
I added example image in edit – Nguyễn Khang Aug 05 '19 at 07:16

Can get specify points' coordinate from output image using OpenCV remap?

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