IRIS is astronomical images processing software that provides a full range of features to enhance, correct and process digital astronomical images, optimized for CCD captures. It can open digital raw formats, as well as BMP, FITS and PIC as well as images from the Buil-Thouvenot Atlas. The many features include noise suppression, distortion correction, stacking of image sequences, spectra processing, sun chromosphere image processing, frame grabbing via webcam and much more.

The license of this software is Freeware, you can free download and free use this image processing software.