Limerickman Posted March 16, 2018 Share Posted March 16, 2018 I am a total newbie and I am trying to remove the background from this image in AP but can't figure out how to do it. I just want to have the image on a transparent background. Thanks lessongesdrolati00tros_0035.jp2 Quote Link to comment Share on other sites More sharing options...
Staff MEB Posted March 16, 2018 Staff Share Posted March 16, 2018 Hi Limerickman, Welcome to Affinity Forums Click the cog icon (to access the Blend Options) in the Layers panel and adjust the points on the curve (see screenshot below) to remove the background. stokerg and Limerickman 2 Quote A Guide to Learning Affinity Software | Affinity Quick Reference Link to comment Share on other sites More sharing options...
Staff stokerg Posted March 16, 2018 Staff Share Posted March 16, 2018 Hi Limerickman and Welcome to the Forums, I was able to get the attached results using Select Sampled Colour and clicking on the black line drawing, i then invert the selection by clicking Select>Invert Selection and then press delete on the keyboard. Playing around with the tolerance slider, you'll be able to improve the selection. I'm sure if anyone else has a method to do this, they will post it Limerickman 1 Quote Link to comment Share on other sites More sharing options...
dutchshader Posted March 16, 2018 Share Posted March 16, 2018 i got this result by adjusting the treshhold adjustment: Limerickman 1 Quote intel core i5, 16GB 128Gb ssd win10 Pro Huion new 1060plus. philips 272p 2560x1440px on intel HD2500 onboard graphics Razer Tartarus Chroma Link to comment Share on other sites More sharing options...
Alfred Posted March 16, 2018 Share Posted March 16, 2018 A threshold adjustment makes the background white instead of transparent. Limerickman 1 Quote Alfred Affinity Designer/Photo/Publisher 2 for Windows • Windows 10 Home/Pro Affinity Designer/Photo/Publisher 2 for iPad • iPadOS 17.4.1 (iPad 7th gen) Link to comment Share on other sites More sharing options...
Staff MEB Posted March 16, 2018 Staff Share Posted March 16, 2018 @dutchshader, The threshold adjustment tends to pixelate the edges. If you use the Blend Options you can control the edge softness through the curve. Limerickman 1 Quote A Guide to Learning Affinity Software | Affinity Quick Reference Link to comment Share on other sites More sharing options...
dutchshader Posted March 16, 2018 Share Posted March 16, 2018 @Alfred you are right, after adjusting the treshhold i used the remove white paper filter. Forgot to mention this Limerickman 1 Quote intel core i5, 16GB 128Gb ssd win10 Pro Huion new 1060plus. philips 272p 2560x1440px on intel HD2500 onboard graphics Razer Tartarus Chroma Link to comment Share on other sites More sharing options...
dutchshader Posted March 16, 2018 Share Posted March 16, 2018 @MEB just tested the blend options and the result is indeed better this way. Never to old to learn Alfred and Limerickman 2 Quote intel core i5, 16GB 128Gb ssd win10 Pro Huion new 1060plus. philips 272p 2560x1440px on intel HD2500 onboard graphics Razer Tartarus Chroma Link to comment Share on other sites More sharing options...
h_d Posted March 16, 2018 Share Posted March 16, 2018 Or... Flood select tool, 20% tolerance, uncheck Contiguous in the context menu, click once on the background to select it, then press delete: Limerickman 1 Quote Affinity Photo 2.0.3, Affinity Designer 2.0.3, Affinity Publisher 2.0.3, Mac OSX 13, 2018 MacBook Pro 15" Intel. Link to comment Share on other sites More sharing options...
carl123 Posted March 16, 2018 Share Posted March 16, 2018 Both, Blend Options and Erase White Paper leaves the Fill of the image transparent If the OP just wants the background transparent, use the Flood Select Tool with Contiguous checked PS A detect edges filter layer can also help define the selection of the Flood Select Tool Limerickman and Alfred 2 Quote To save time I am currently using an automated AI to reply to some posts on this forum. If any of "my" posts are wrong or appear to be total b*ll*cks they are the ones generated by the AI. If correct they were probably mine. I apologise for any mistakes made by my AI - I'm sure it will improve with time. Link to comment Share on other sites More sharing options...
Limerickman Posted March 16, 2018 Author Share Posted March 16, 2018 Holy cow I never expected such fast nor such great responses. Thanks so much to everyone. Alfred 1 Quote Link to comment Share on other sites More sharing options...
henryg Posted March 16, 2018 Share Posted March 16, 2018 Can somebody please explain what the blend mode route does? I can duplicate the effect of course, but I would like to understand it to recognise when I can use it. My instinct would have been flood select & delete, but the results are interestingly different. Quote Link to comment Share on other sites More sharing options...
h_d Posted March 16, 2018 Share Posted March 16, 2018 3 hours ago, henryg said: Can somebody please explain what the blend mode route does? I can duplicate the effect of course, but I would like to understand it to recognise when I can use it. My instinct would have been flood select & delete, but the results are interestingly different. Zoom in on the image and display the Information panel (View - Studio - Info). As you move your mouse over various areas of the image, you'll see the RGB values (the strength of the pixels) in the information panel change. While the mouse is over a background area as in the screen grab above, the RGB values are high/strong - around 150-200. When you move it over a black line in the image, the RGB values are low/weak - no greater than about 20. Now set up the Blend Ranges panel as in MEB's example, and see what happens in the Info panel when you move the mouse around. Background pixel strength has been reduced to zero, but the black line areas stay more or less the same: The left-hand graph in Blend Ranges - Source Layer Ranges - has two axes: X (across) goes from weak pixels (left) to strong pixels (right); Y goes from "don't show" at the bottom to "show" at the top. In MEB's example the Blend Ranges panel is set up to show the weak pixels (left,top) and hide the strong ones (right, bottom). It's much more subtle than my original flood selection answer, which left some darker brown areas undeleted - I should have been a bit more careful with the tolerance in the flood selection tool. Hope this makes sense! Quote Affinity Photo 2.0.3, Affinity Designer 2.0.3, Affinity Publisher 2.0.3, Mac OSX 13, 2018 MacBook Pro 15" Intel. Link to comment Share on other sites More sharing options...
henryg Posted March 17, 2018 Share Posted March 17, 2018 Wow, thanks. I'll print this to pdf and go through it again (and possibly again and again ). Very interesting. Quote Link to comment Share on other sites More sharing options...
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