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==== [[fiarith]] ==== | ==== [[fiarith]] ==== | ||
| + | * Basic arithmetic operations on images. | ||
| + | * Operations on individual pixels. | ||
| + | * Creation of images where the pixel intensities are are functions of the coordinates. | ||
==== [[ficalib]] ==== | ==== [[ficalib]] ==== | ||
| + | * Performing simple arithmetic operations on a bunch of images. | ||
| + | * Performing pixel mask modification on a bunch of images. | ||
| + | * Trimming of a set of images. | ||
==== [[ficombine]] ==== | ==== [[ficombine]] ==== | ||
| + | * Combination of a set of images into one image using various averaging and stacking methods. | ||
==== [[ficonv]] ==== | ==== [[ficonv]] ==== | ||
| + | * Fitting optimal convolution transformation between a reference image and an input image. | ||
| + | * Application of existing convolution transformation on a reference image. | ||
| + | * Performing image subtraction using a reference image and an input image either by knowing the convolution transformation in advance or by fitting the optimal one during the process. | ||
| + | * Management of so-called kernel files describing these convolution transformations. | ||
==== [[fiheader]] ==== | ==== [[fiheader]] ==== | ||
| + | * Extracting various FITS keywords and the associated values from individual or a bunch of files. | ||
| + | * Modification of FITS keywords in an individual or in a bunch of files. | ||
| + | * Adding or removing FITS keywords to/from an individual or to/from a bunch of files. | ||
==== [[fiign]] ==== | ==== [[fiign]] ==== | ||
| + | * Performing low-level manipulation of masks associated to FITS images. | ||
| + | * Adding or removing masks (and various mask layers) to/from a FITS image. | ||
| + | * Conversions between various mask types. | ||
| + | * Adding or removing mask bits as the function of the pixel values or based on the characteristics of pixels. | ||
==== [[fiinfo]] ==== | ==== [[fiinfo]] ==== | ||
| + | * Reporting a brief or a detailed summary about a FITS file, including primary image and various extensions (such as additional images, binary tables or textual tables). | ||
| + | * Extracting raw information from FITS files, including dumping of image pixel data, mask bits, binary table data and textual table data. | ||
| + | * Conversion of FITS images to PNM (PPM, PGM) format using | ||
| + | ** various scaling functions, such as linear, logarithmic, squared, square root, etc., | ||
| + | ** scale limit determinations, such as minimum, maximum values, zscale, histrogram normalization, values derived from cumulative pixel intensity distributions, etc., and | ||
| + | ** various color palettes, including grey-scale, color, custom defined color as well as 8-bit and 16-bit dynamics. | ||
| + | * Extracting simple pixel statistics from FITS image files. | ||
==== [[fiphot]] ==== | ==== [[fiphot]] ==== | ||
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