:orphan: .. _ahelp_imupsam: ******* imupsam ******* .. contents:: :local: | .. code-block:: none Usage: imupsam [-A] n input_image output_image *** Consider using the newer 2dcat for resampling. byte and rgb images * Upsamples the input 2D image by a factor of n and writes result into output_image; n must be an integer in the range 2..30. * 7th order polynomial interpolation is used in each direction. * Inputs can be complex, float, short, PGM, PPM, or JPG. * If input_image is in color (PPM or JPG), output will be PPM unless output_image ends in '.jpg'. * If output_image is '-', the result will be written to stdout (so you could pipe it into something else). * The '-A' option means to write the result in ASCII format: all the numbers for the file are output, and nothing else (no header info).