deltaquattro Posted October 22, 2015 Share Posted October 22, 2015 (edited) Hi, I have an image which is a technical drawing. The original image has a white background (which I need to keep) and multiple colored lines, which must be all converted to black (think of it as the technical drawing of a machine). I can't find how to do it in Paint.NET 4.0.6. Using Adjustments\Black & White gives me back grayscale, which doesn't cut it: I need all lines to be the same (black), not some lines to be darker, and some others to be lighter (a few are so light, I can barely see them). I also tried playing with brightness & contrast, but I end up messing the background, which is white originally, and must stay so. Any suggestions? Edited October 22, 2015 by deltaquattro Quote Link to comment Share on other sites More sharing options...
racerx Posted October 22, 2015 Share Posted October 22, 2015 After you convert ti black and white, use the curves adjustment tool. Click a point in the center and move it down. You can also use the "Threshold" plugin by Ed Harvey to do the same thing. Quote Link to comment Share on other sites More sharing options...
deltaquattro Posted October 22, 2015 Author Share Posted October 22, 2015 Nice! It worked fine, thanks. In meantime I found another solution: Adjustments\Hue & Saturation -> maximize Hue and Saturation, then Adjustments\Black & White. I don't know what's happening exactly but they both work Quote Link to comment Share on other sites More sharing options...
TechnoRobbo Posted October 22, 2015 Share Posted October 22, 2015 Curves under the adjustment menu - you can decide what shade go white or black and define multiple vertical adjustments on the graph Quote Go out there and be amazing. Have Fun, TRSome Pretty Pictures Some Cool Plugins Link to comment Share on other sites More sharing options...
Riddley Posted October 23, 2015 Share Posted October 23, 2015 (edited) Bruh, just use the Brightness/Contrast Adjustment; Max out the contrast, and if the white background gets messed up, raise the brightness. Edited October 23, 2015 by Riddley Quote Check out my gallery/archive: here Just keep on keeping on. ✌ Link to comment Share on other sites More sharing options...
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