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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. – user169819 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. – user169819 Jan 19 '18 at 3:35
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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.

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