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How to find that image has distortion?

asked 2017-11-07 01:19:33 -0500

MariGeek gravatar image

updated 2017-11-07 01:21:28 -0500

berak gravatar image

I performed camera calibration on image. I want to know that how to decide that there is distortion in image?

For example look at attached image. how can we say that image has distortion. Any idea?

By visualization, we can say that image is too much distorted or calibration is not performed well. but how can we say with some computation method or some statistics?

C:\fakepath\im_outb245.pngPlease help me to figure out. thanks

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answered 2017-11-07 01:45:17 -0500

VxW gravatar image


you could use some references in the image, e.g. the black lines on the wall in the background. Extract the lines and calculate the parallelity of the lines. If they are parallel everything is fine otherwise the image is distorted.


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It is not the parallelity of the lines but rather: straight lines have to be straight.

Eduardo gravatar imageEduardo ( 2017-11-07 08:56:17 -0500 )edit

yes, you are right

VxW gravatar imageVxW ( 2017-11-07 09:23:50 -0500 )edit
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Asked: 2017-11-07 01:19:33 -0500

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Last updated: Nov 07 '17