Gru Posted August 7, 2020 Share Posted August 7, 2020 Hey guys, by using photoshop it was easy to reduce stars. You just select the highlights, expand the radius, convert into a smart object and make the shadows. How can I do this in Affinity Photo? My first steps are: Select Highlights and expand the range circular. and then? Thank you for advice! Quote Link to comment Share on other sites More sharing options...
Staff James Ritson Posted August 7, 2020 Staff Share Posted August 7, 2020 Hi @Gru, I'm not familiar with the end step—make the shadows? Do you mean the content aware replacement once you have your stars selected? I usually do: Select>Tonal Range>Select Highlights Select>Grow/Shrink (somewhere between 6-12px) Select>Smooth (optional, depending on image) Edit>Inpaint The last step will inpaint all the selected stars out and typically replace them with dark sky detail. Other things you may want to try: Duplicate your pixel layer (e.g. Background), go to Filters>Sharpen>Clarity and use a negative value, then apply the filter. Change the layer opacity to alter the strength of the star removal. Select>Select Sampled Colour: useful for selecting dimmer stars, especially if they have colour fringing (e.g. red/purple). Similar procedure to the inpainting technique mentioned above. Layer>New Live Filter Layer>Blur>Minimum Blur, or alternatively use the destructive Filter menu version on a duplicated pixel layer. Mask away from the important areas like your deep sky objects to ensure you don't remove too much information. Hope that helps! Gru 1 Quote Product Expert (Affinity Photo) & Product Expert Team Leader @JamesR_Affinity for tutorial sneak peeks and more Official Affinity Photo tutorials Link to comment Share on other sites More sharing options...
Gru Posted August 16, 2020 Author Share Posted August 16, 2020 Hey James, thank you very much for your answere. Your tips: The Inpaint does not help so good and gave many artifacts. The clarity filter works perfect! From a glossy star field to a great picture in wide field photos. Sample colour as you said. For dimming stars with a specific colour from cromatic abberation e.g. The minimum blur also is not working for me. In a range between 0.1 and 1.2 pixel the filter doesn´t even work. After 1.3/1.5 pixels the effect is way too crazy Christian Quote Link to comment Share on other sites More sharing options...
innerside Posted August 17, 2021 Share Posted August 17, 2021 On 8/7/2020 at 6:36 PM, James Ritson said: Duplicate your pixel layer (e.g. Background), go to Filters>Sharpen>Clarity and use a negative value, then apply the filter. Change the layer opacity to alter the strength of the star removal. For me this one works perfectly. Such a simple but strong schema of using negative clarity! Thanks James! Quote Link to comment Share on other sites More sharing options...
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