Search found 5 matches

by pencilpen
Thu Jan 10, 2019 3:39 am
Forum: Technical Discussion
Topic: How can I find minimum area rectangle in binary image?
Replies: 21
Views: 11298

Re: How can I find minimum area rectangle in binary image?

Yeah, I get what you want to do. But, keep in mind you haven't presented a use case other than you want to display this onscreen which is a rather weak need for it. We have a method that gives you already the rotation an object. Anyway, given what you want. I'll add the outer edges of the object po...
by pencilpen
Tue Jan 01, 2019 12:00 am
Forum: Technical Discussion
Topic: How can I find minimum area rectangle in binary image?
Replies: 21
Views: 11298

Re: How can I find minimum area rectangle in binary image?

Not yet. I've finally completed enough tasks to get back to doing firmware updates however. So, the next firmware release should have this feature. Um, note, I plan to just expose the four extreme corners of the object. The minimum rect will just then be parallel lines that pass through these corne...
by pencilpen
Mon Dec 31, 2018 3:34 am
Forum: Technical Discussion
Topic: How can I find minimum area rectangle in binary image?
Replies: 21
Views: 11298

Re: How can I find minimum area rectangle in binary image?

I found new update OPENMV ide with new firmware. Do you add minimum area rectangle in last firmware? I understand what you need to do. Um, so the rect we return has a left/right/up/down parts. However, this ins't the min area rect... but, the min area rect intersects these points. Anyway, the easies...
by pencilpen
Sat Dec 08, 2018 12:50 am
Forum: Technical Discussion
Topic: How can I find minimum area rectangle in binary image?
Replies: 21
Views: 11298

Re: How can I find minimum area rectangle in binary image?

Thank you for you fast reply. In my previous project, I use visual studio with emgu cv to measures width and length of object. In last project, I use openmv with non-distortion lens. Then I want to make embeded machine to use mesure width and length of object and have light display when found defect...
by pencilpen
Fri Dec 07, 2018 11:02 pm
Forum: Technical Discussion
Topic: How can I find minimum area rectangle in binary image?
Replies: 21
Views: 11298

How can I find minimum area rectangle in binary image?

I have EmguCV project to find all minimum area rectangle in contour like below.

VB.NET with EmguCV code :
imgRects.Draw(CvInvoke.MinAreaRect(contour), New Bgr(Color.Red), 3)

How can I find minimum area rectangle in binary image like vb.net code as above?

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