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r00sevelt
Participating Frequently
June 3, 2024
Question

How to make image in ACR like image in PS. Looking for easy to follow method. Thanks.

  • June 3, 2024
  • 2 replies
  • 533 views

Want to make image in ACR look like image in PS. Have latest versions of each one.  But an image in one, when sent to the other, has a different luminousity -- and maybe different colors.  Would appreciate an easy to follow method for accompliching this. Many thanks. Richard

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2 replies

D Fosse
Community Expert
D FosseCommunity Expert
Community Expert
June 3, 2024

Actually there is no significant difference in tonality or color. There is a very very slight difference in the deepest shadow values - not so much that you notice it, just enough to slightly alter the shape of the histogram. But I think there's a different explanation for that:

 

What I notice here is that they are at different zoom levels. One screenshot is a little larger than the other. That means the on-screen resampling is a little different, and that affects sharpness and noise.

 

Sharpness and noise can sometimes affect perception of tonality to various degrees.

 

View at 100% in both and check again. 100% is not about size - it means one image pixel is represented by exactly one physical screen pixel. Screen resampling algorithms are different between PS and ACR, but viewing at 100% takes that out of the equation.

 

I should probably add that I vewed this on an Eizo Coloredge monitor, and stacked the two images after having matched the size, so I could quickly flip.  I would have noticed any visible differences.

    R
    r00seveltAuthor
    Participating Frequently
    June 5, 2024

    Hi D Fosse,

    Thank you for your comprehensive reply. The example I sent seems not to be very instructive. I'm going to look for a better one to send you. One question: should I be looking at both the images at 100? Richard

    D Fosse
    Community Expert
    D FosseCommunity Expert
    Community Expert
    June 5, 2024

    Yes, 100% is always best, so make the image small enough to fit on screen. Although with a noise-free image it shouldn't matter much.

     

    Oh, and to be clear - make the screenshots from each individual application, but open and compare them in Photoshop. This is where you do the assign profile > convert.

     

    You can use the same procedure for raw files. Just open them into Adobe RGB in Photoshop.

    D Fosse
    Community Expert
    D FosseCommunity Expert
    Community Expert
    June 3, 2024

    That's either a defective monitor profile or a GPU driver bug (assuming you have HDR off in ACR).

     

    Post a side by side screenshot.

     

    Which calibrator are you using? What monitor model?

      R
      r00seveltAuthor
      Participating Frequently
      June 3, 2024

      Thank you for answering.

      Using a datacolor spyder xprp on an imac 22" M1. 

      Calibrate monthly.

      Below are the 2 screen shots. 1.27.27 is in PS. 32.02 is in ACR.

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