merge_images

PURPOSE

merge_images takes two or more images and merges them into a single output image.  The value of a pixel in the output image is that of the first non-black pixel found at the same position when going though the input images in the order they are listed on the command line.  If all input images have a black pixel in that position, then the output image will have a black pixel there.  This is useful when two regions of a single image have been processed separately (due to image tears or folds), and as the very last step after warping into aligned space need to be merged back together.

TYPICAL USAGE

merge_images -input image0.tif -input image1.tif -input image2.tif -output out.tif

COMMAND LINE OPTIONS

-input input.[tif | pgm | jpg]

specifies one input image; multiple -input options may appear on the command line.  Their order is significant as described above.

-output output.tif

specifies the filename of the output image to be written.