What is disparity map? what are the advantages of knowing disparity of two images?

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Alex E. Hayes

A disparity map is a measure of how different two images are, how far away similar edge/corner/feature points are from one image to the other (e.g. the image distance between the same person in two images).

This is typically used in stereoscopic vision for the calculation of depth, but may also be used for applications such as image registration.

Naveenkumar Mahamkali

Thank you for answer the question.

I need some more explanation of disparity map. I attached an image that contains left image, right image and disparity map of them.

I didn't get the meaning of disparity of map of these two images.

Aparna Sathya Murthy

https://en.wikipedia.org/wiki/Computer_stereo_vision

https://en.wikipedia.org/wiki/Binocular_disparity

http://docs.opencv.org/3.1.0/d3/d14/tutorial_ximgproc_disparity_filtering.html#gsc.tab=0