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2018-03-30 10:21:20 -0600 commented question Camera correction

With the current configuration, the px/mm ration is ~= 1.6 and the requirement is a measurement precision of less than 1

2018-03-30 10:20:31 -0600 commented question Camera correction

With the current configuration, the px/mm ration is ~= 1.6 and the requirement is a measurement precision of less than 1

2018-03-30 06:08:55 -0600 commented question Camera correction

@David_86 Thank you for the information. If after camera calibration, the size difference comes from the distance to the

2018-03-29 18:23:10 -0600 received badge  Editor (source)
2018-03-29 18:23:10 -0600 edited question Camera correction

Camera correction Hello, I have a problem with the following image acquired from a high resolution camera: You can see

2018-03-29 18:22:01 -0600 asked a question Camera correction

Camera correction Hello, I have a problem with the following image acquired from a high resolution camera: You can see

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2017-09-13 03:55:20 -0600 asked a question Rigid transformation of two shapes with OpenCV in Java

Rigid transformation of two shapes with OpenCV in Java As the title says, I'm trying to find a way to generate a transfo

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2016-04-04 13:23:43 -0600 commented question Corresponding points in two matched contours

Thank you! I'll have a look this week.

2016-04-03 09:06:57 -0600 asked a question Corresponding points in two matched contours

Hello,

First of all, I just starting using OpenCV, so I'm sorry is the answer is obvious, I tried searching for a solution as well as studying the API, but I'm not making any progress.

I'm working on writing an application that needs to check if certain measurements of an item in a photo are correct. To be concise, having two contours that match reasonably well and having a point p on the first contour, I need the corresponding point on the other contour.

I was thinking that one way of trying this is this:

  1. Transform the second contour (by resizing and rotating it) so it best overlaps with the first one.
  2. Given the point p in the first contour, use pointPolygonTest to compute the distance between p and the second contour.

However I'm stuck because the matchShape function only gives me information regarding the match quality and not how to overlap the contours. So the question is: how do I transform a contour so it best overlaps with another contour?

Thanks, R.

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