why are the red rectangle areas not of the same size?

asked 2018-11-08 10:55:34 -0600

Tyrone2142 gravatar image

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I am first trying the stereocalibration and stereorectify with OpenCV3 on VS2017. But the red rectangle areas not of the same size all the time. Why? I have used 13 pairs of pictures for calibration.

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question is unclear.

what do those red rectangles mean, and where is the code for it ?

berak gravatar imageberak ( 2018-11-09 01:25:00 -0600 )edit

if (useCalibrated) { Rect vroi(cvRound(validRoi[k].xsf), cvRound(validRoi[k].ysf), cvRound(validRoi[k].widthsf), cvRound(validRoi[k].heightsf)); rectangle(canvasPart, vroi, Scalar(0, 0, 255), 3, 8); }

Tyrone2142 gravatar imageTyrone2142 ( 2018-11-10 04:12:50 -0600 )edit

I don't understand where 'validRoi[k]' comes from and means... The rectangle areas of the test pictures provided by OpenCV seem to be of the same size, but mine don't...

Tyrone2142 gravatar imageTyrone2142 ( 2018-11-10 04:16:56 -0600 )edit

oh , it seems to be from here ?

berak gravatar imageberak ( 2018-11-10 04:24:42 -0600 )edit

yes. I was trying to run the test code provided by OpenCV, and this problem showed up...

Tyrone2142 gravatar imageTyrone2142 ( 2018-11-10 08:41:21 -0600 )edit
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