TerryMcK Posted November 4, 2020 Share Posted November 4, 2020 I've been playing around with PixInsight (and Photoshop of course) with some of my data acquired in Sept 2020 (so long ago now) and here is one of my renditions of Flemings's Triangular WispChannel Combination R=SII, G=Ha, B=OIIII did an autoscreen transfer functionTweaked the STF very slightly and applied it to a Histogram Transform to make the image non linearNext I inverted the image and did a SCNR to remove green the reinverted the image againHDR Multiscale Transform next with 6 layers and 1 iteration with B3 Spline (5) and a lightness maskScript dark structure enhanceStarnet to create a starless image and a star maskSaved the starless image as a 16bit TIFF and imported it into PhotoshopIn Photoshop the image was denoised with TopazBalanced the histogram to move the black point slightly I run another PI unsharp mask on it and saved it againBack to PixInsight the starless image was loaded up againInvert the starmask and did a SCNR on the green component and inverted it back againNext run a photometric colour calibration on the star mask based upon my focal length/pixel size/date of acquisition and RA/DECPixelMath came next to add together the two imagesExport as a PNG Here is yet another rendition of Pickerings Triangular Wisp AKA Flemings Triangle https://imgur.com/a/mtlBYUF Fleming's Triangular Wisp 1 Quote Link to comment Share on other sites More sharing options...
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