mrcdisp filename			to view image
                                        can also view histogram of densities
	fftrans filename.img filename.fft	calculate fft
	mrcdisp filename.fft			display fft
        prnimg filename			to obtain postscript output for printing
        ghostview prnimg.ps		to preview postscript output
	lp prnimg.ps			to send output to printer
	label filename.img		to select smaller area from image

- For correcting xtal distortions in image

        histo filename.img              to obtain histogram of image
        label filename.img              to reduce image size by factor of 2
        fftrans filename.red filename.fft       to calculate Fourier transform
        mrcdisp filename.fft              to display fft and obtain lattice parameters a*,b*
        joba              (image id, dimension, print flag set within script)
                        to find actual positions of unit cells in image
        ccua            to apply corrections to original image
        fftrans corimage        transform corrected image
        wcbox           to obtain ampl and phases and evaluate success
                        of unbending
        jobb                            2nd round of unbending if necessary
        ccub                            2nd round of unbending        
        fftrans corimage
        wcbox           to obtain ampl. and phases from transform
        ctfapply  img.cnt  ->  ctfk.aph  and plot82.plt
                        to apply correction for ctf to phases and ampl.
        origtilt  <  origmerg.cnt   ->   merged.aph
                        to determine right phase origins and merge images
        avrgamphs < avrgamphs.cnt  ->  avrg ampl and phase file
                        to create single data set of averaged data
        avrgphases < avrgphases.cnt  ->  avrg phase file for only phases
        remove first line from output of avrgamphs or avrgphases
        makemtz         to make mtz file for next step
        fourcalc_aph    Fourier synthesis and contour map generated