Distorts an image given a view homography.
misc/apply_homography homography.json in_image.png out_image.png texture/depth [border.json]
Reads the image in_image.png, applies the homography matrix from homography.json, and writes the output image into out_image.png.
The third parameter indicates whether in_image.png is a texture or a depth image. If it is a texture, bicubic interpolation is used. Otherwise, nearest neighbor interpolation is used.
If border.json is given, that border is added to the output image, making it larger than the input image. (Or smaller, if borders are negative). It should be set so as to avoid clipping.
The homography matrix refers to the mapping of image coordinates before the border is added. The programming internally modifies it as needed.