I need to know the exact alpha value of a pixel in Photoshop. I tried using the answer in this question (Determine pixel alpha value in photoshop), but that gives me an opacity percentage such as 27%, which can be anything between 68 and 70, which all round to 27% after dividing by 255.

Is there any way to get the exact alpha value in Photoshop?

  • A question on this topic has already been asked in Super User – spike_66 Jan 17 '18 at 6:29
  • @spike_66 I know, and I even linked that question in my question. I'm looking for the exact alpha channel value from 0 to 255 rather than a percentage that can correspond to several alpha values. – Runemoro Jan 17 '18 at 7:05
  • Other question on this topic in Super User – spike_66 Jan 18 '18 at 6:53
  • @spike_66: That's the same link. It doesn't give me the exact value, but rather the value rounded to the nearest percent. – Runemoro Jan 19 '18 at 3:35

Make sure the info box is set to RGB. You will see three numbers (which should all be equal for your alpha-channel and will correspond to the value you are looking for.

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.