A technique for creating images that offer a wide view of a scene, where the image width is usually significantly wider than the image's height. Panorama images can be created by cropping or, more commonly, by "stitching" several images together to create the larger image.
After fine-tuning control points in Hugin the distance parameter indicates the correlation of two control points in different images and is a value between 0 and 1. However, line control points ...
Panorama stitching and blending has gotten very good and quite advanced. For example, the alignment algorithms seem to be able to compensate for any sort of camera movement, and Smartblend (at least ...