Alphabetic listing

• add -add images together
• astrom - determines world coordinate system
• bin -squashes an image
• bisky -removes sky gradients
• blend -creates TIFF file
• boxshift -box manipulation functions
• centroid -calculates centroid of images
• clip -replaces pixels outside a specified intensity range
• cursor -display data values at cursor position
• div -divide images
• expand -expands an image
• fft1d - makes one dimensional FFTs of columns
• fft2d - makes two dimensional FFTs of images
• flip -changes orientation of image
• fold - coadds repetive data
• fromworld -converts RA/Dec to row/col
• header -displays or alter the FITS header
• hist -computes histograms
• imshift -shifts image in rows and columns
• implant -inserts an image into another image (montage)
• marks -display cross hairs on an image
• mash -generates spectra from image files into ASCII file
• match - finds offsets between star lists
• median -creates median frame from several images
• mn -computes mean of images
• mul -multiply images
• pare - removes nearby stars from star
• pfits -prints out image data on the screen
• pformat -displays keywords from FITS
• pstar - generates artificial star images
• rotate -rotates images
• rowcol -cuts rows or columns from data into an ASCII file
• sky - computes sky (mode) level
• smooth -convolves images
• spike -finds hot pixels in an image
• stars -finds stars in an image
• sub -subtract images
• tomag -decimal to magnitudes
• toworld -converts row/col to RA/Dec
• tv -display grey scale image on screen
• wcs -World Coordinate manipulator
• window - cuts down images
• xplot -plot program for columnar data
• zap - cosmic ray removal