brownpanda Posted March 7, 2017 Share Posted March 7, 2017 Hello, I'm not sure if it's the right place to this topic, so if it's not - I apologise. Sometimes I want to check on photo what is the pure white and what is pure black, and when I tried to do this in AP using threshold, I could only check the black parts. When I set 100% value in threshold it shows like there is no white on picture. Should it be that way? Cheers Quote Link to comment Share on other sites More sharing options...
Alfred Posted March 7, 2017 Share Posted March 7, 2017 The Threshold adjustment isn't a checking tool, it's an adjustment: when you use it, you're changing the pixel content of the image (so when you set the value to 100% you aren't showing that there's no white, you're changing the picture to one where there is no white). 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...
gdenby Posted March 7, 2017 Share Posted March 7, 2017 If you just want to check on what is pure black or white, use the levels adjustment, set to grays, and move the sliders so that black or white are just 1% apart at either end. Quote iMac 27" Retina, c. 2015: OS X 10.11.5: 3.3 GHz I c-5: 32 Gb, AMD Radeon R9 M290 2048 Mb iPad 12.9" Retina, iOS 10, 512 Gb, Apple pencil Huion WH1409 tablet Link to comment Share on other sites More sharing options...
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