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chrisl68328119
Participant
April 13, 2023
Answered

Replicate Dog vision

  • April 13, 2023
  • 2 replies
  • 4259 views

I want to create/edit some photos so that they are in the same colours a dog would see the world. Dogs are dicromatic so only see shades of yellow and blue, ive attached a link below with some information on it. Ive spent a fair ammount of trime trawling the web for something to help, ive found that dogs vision is simular to someone who suffers from the form of colour blindness called deuteranopia. Now photoshop has a filter that shows this effect (view>proof setup> Colour Blindness deuternaopia), however when you save the image the photo saves in its nomral colour profile. Is anyone able to point me to, or create a LUT, or tell me how to save the image so that it is how a dog would see it. 

TIA 
Chris


[weblink removed as per forum guidelines]

 

 

 

    This topic has been closed for replies.
    Correct answer Stephen Marsh
    @chrisl68328119 wrote:

    or tell me how to save the image so that it is how a dog would see it. 

     

    I can't vouch for how a dog sees things, however, I can tell you how to remove the magenta/green component, leaving the blue/yellow:

     

    1. Image > Mode > Lab
    2. Target/activate the "a" channel
    3. Fill with 50% grey
    4. Edit > Convert to Profile and select an appropriate RGB destination

     

    2 replies

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    chrisl68328119Author
    Participant
    April 13, 2023

    Addiotnal:

    ive just been pointed to this website, but i dont know how it translates to editing images in photoshop, the source java code and everything is there.

     

     

    [weblink removed as per forum guidelines]

     

     

    Stephen Marsh
    Community Expert
    Stephen MarshCommunity ExpertCorrect answer
    Community Expert
    April 13, 2023
    @chrisl68328119 wrote:

    or tell me how to save the image so that it is how a dog would see it. 

     

    I can't vouch for how a dog sees things, however, I can tell you how to remove the magenta/green component, leaving the blue/yellow:

     

    1. Image > Mode > Lab
    2. Target/activate the "a" channel
    3. Fill with 50% grey
    4. Edit > Convert to Profile and select an appropriate RGB destination

     

      C
      chrisl68328119Author
      Participant
      April 13, 2023

       So followed your instructions and thats braught me fairly close but its not quite right. 
      my attempt is  the left image, the original is the middle, dog vission is on the right 

      C
      chrisl68328119Author
      Participant
      April 13, 2023

      i know i can just add gaussian blur to reduce the sharpness/clarity

       

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