IRIS is an image-processing freeware that can be used for almost any astronomical target including planets and deep-sky objects. Its command-line interface that looks very similar to DOS (disk-operating system) allows users to control almost ever aspect of the processing techniques applied to the image. I’m starting to like it now that I’ve used it several times and have seen pretty amazing results. Shown above is a reprocessed Jupiter image using the same image data in my previous Jupiter post.
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© Anthony Urbano (Manila, Philippines)