Image registration is the process of aligning two or more images of the same scene. Need to remove differences in patient positioning to relate information from different types of images. 

The process is used to align image that is an important pre-process step for image Segmentation and classification techniques.

Image registration is an image processing technique used to align multiple scenes into a single integrated image. It helps overcome issues such as image rotation, scale, and skew that are common when overlaying images.

Image registration is often used in medical and satellite imagery to align images from different camera sources. Have a look to the attached example.

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