Deconvolution does not add detail to an image or increase its resolution. All any deconvolution algorithm does – or tries its best to do – is to restore contrast to existing detail in an image. In this video from May 7th, 2023 on The Astro Imaging Channel, I cover the fundamentals of Signal Processing theory that are behind this idea:
Thanks very much to the entire team at The Astro Imaging Channel for having me on the show!