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2020-04-12 14:42:10 -0500 commented answer How do i remove background noise in binary picture?

and why did you do it

2020-04-12 14:41:53 -0500 commented answer How do i remove background noise in binary picture?

@supra56 can you explain to me what this did? img = cv.bitwise_not(gray)

2020-04-12 07:38:18 -0500 commented question How can I increase contrast in binary picture?(python)

No, its from the internet

2020-04-12 07:15:14 -0500 commented question How can I increase contrast in binary picture?(python)

I got the green channel then reversed it

2020-04-12 07:14:20 -0500 commented question How can I increase contrast in binary picture?(python)

updated it

2020-04-12 07:14:13 -0500 received badge  Editor (source)
2020-04-12 07:14:13 -0500 edited question How can I increase contrast in binary picture?(python)

How can I increase contrast in binary picture?(python) I'm really new to opencv. This is my picture and as you can see t

2020-04-12 06:11:23 -0500 asked a question How can I increase contrast in binary picture?(python)

How can I increase contrast in binary picture?(python) I'm really new to opencv. This is my picture and as you can see t

2020-04-12 05:09:36 -0500 commented answer How do i remove background noise in binary picture?

@supra56 I actually need the process to be automatic, but i will try with better pics

2020-04-11 11:19:05 -0500 commented answer How do i remove background noise in binary picture?

Thank you!!!

2020-04-11 11:18:57 -0500 commented answer How do i remove background noise in binary picture?

Thank you so much !!!

2020-04-11 11:14:40 -0500 marked best answer How do i remove background noise in binary picture?

I am really new to opencv. How can I remove the noise in the background without losing info?

https://i.stack.imgur.com/LQ3W3.jpg

I started with this: https://i.stack.imgur.com/YHtN6.jpg, and Otsu thresholded it. I've tried erosion, dilation, bilateral filtering. My goal is to get a rectangle on the borders so I can perspective transform the thresholded picture, but it has trouble finding contours. Or maybe is there a different and better approach?

2020-04-11 11:14:40 -0500 received badge  Scholar (source)
2020-04-09 22:59:04 -0500 asked a question How do i remove background noise in binary picture?

How do i remove background noise in binary picture? I am really new to opencv. How can I remove the noise in the backgro