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March 22, 2017
Question

Using photoshop for measurements

  • March 22, 2017
  • 2 replies
  • 214 views

Is there a way for me to estimate the percentage of a given selection (I.e. the % of green pixels in a image)? And if I want to create a scale, what should I do?

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    2 replies

    Derek Cross
    Community Expert
    Derek CrossCommunity Expert
    Community Expert
    March 22, 2017

    Using the Eye-dropper tool with the Info panel gives you the percentage of CMYK and other information.

      davescm
      Community Expert
      davescmCommunity Expert
      Community Expert
      March 22, 2017

      You could try this:

      Use the histogram panel with no selection to count the total pixels (make sure that there is no triangle in the histogram - if there is click it to update)

      Make a selection of the colour you want to count using Select Color range. Recheck the histogram for a count (again make sure there is no triangle in the corner and if there is click it to update

      Divide the second by the first and multiply by 100% . so in the above example 18281/12719616 x100% = 0.14%

      Dave

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