[nbyte, nlin, npix, ncol] = readrawgui(filename, nbyte, nlin, npix, ncol) User input needed for reading .raw files by imageread. nbyte (bytes/pixel/color), nlin, npix, ncol(number of colors) are default values for gui. If not specified the defaults are (see source) nbyte=2; ncol = 1; 22 Aug. 2008 Copyright (c) Peter D. Burns 2008