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What colour is the car?

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  #1  
Old 06-07-2015, 09:09 AM
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RickS (Rick)
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Is your browser/OS colour managed?

What colour is the car?

http://petapixel.com/assets/uploads/2012/06/S2fzq.jpg
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  #2  
Old 06-07-2015, 09:11 AM
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multiweb (Marc)
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Dijon mustard with a touch of beetroot when you save it.
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  #3  
Old 06-07-2015, 09:12 AM
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Quote:
Originally Posted by multiweb View Post
Dijon mustard with a touch of beetroot when you save it.
You must be on a Mac
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  #4  
Old 06-07-2015, 09:14 AM
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multiweb (Marc)
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Quote:
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You must be on a Mac
PC, Windows 7 64. That's a weird one. The histogram looks exactly the same.
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  #5  
Old 06-07-2015, 09:21 AM
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Quote:
Originally Posted by multiweb View Post
PC, Windows 7 64.
So, it appeared correctly (yellow) in your browser and then purple (not colour managed) after you saved it, Marc? What browser were you using? Sounds like it stripped the profile when it downloaded the file.

Cheers,
Rick.
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  #6  
Old 06-07-2015, 09:24 AM
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multiweb (Marc)
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Quote:
Originally Posted by RickS View Post
So, it appeared correctly (yellow) in your browser and then purple (not colour managed) after you saved it, Marc? What browser were you using? Sounds like it stripped the profile when it downloaded the file.

Cheers,
Rick.
I was viewing in IE11.0.20. When I saved the file I saved two version. Funny thing is when I load the purple car in PS and the orange one in a separate file the histogram is similar. When I copy paste the orange car in a new layer in the purple file then the orange turns gray scale and looses the color.
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  #7  
Old 06-07-2015, 09:29 AM
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Got it. The RGB palette is rotated. Swap RGB to GBR
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  #8  
Old 06-07-2015, 09:34 AM
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Yellow when saved on my Mac Rick.

DT
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  #9  
Old 06-07-2015, 09:34 AM
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Looked orange/yellow in all versions I opened in PS UNLESS I selected NOT to colour manage, then it was Sidonio Magenta/Purple.
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  #10  
Old 06-07-2015, 11:46 AM
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Interesting.

Yellow when viewed in:
Chrome
PixInsight
Adobe Photoshop CS2
Windows Photo Viewer
thumbnail in Windows Explorer

Purple when viewed in:
Irfanview
MaximDL
MS Paint
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  #11  
Old 06-07-2015, 12:01 PM
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Yellow in Chrome, FF, PS, windows pic viewer and some other viewers.
But purple in MS Paint (and thanks for getting me to open Paint for the first time this millennium...)

Also tried on a Mac, and yellow in everything.
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  #12  
Old 06-07-2015, 01:06 PM
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same here .... yellow in Firefox.
.... purple in MS Paint.

interesting...!! ... how so....?

Col.....
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  #13  
Old 06-07-2015, 01:24 PM
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Quote:
Originally Posted by FlashDrive View Post
same here .... yellow in Firefox.
.... purple in MS Paint.

interesting...!! ... how so....?

Col.....
The image has RGB values that would normally be interpreted as a purple colour in any typical colour space. A couple of samples are <R=103,G=0,B=177> and <R=165,G=0,B=235>. If you display these values directly on almost any screen you'll get a purple colour.

The image also has an embedded colour profile called "Jeffrey's Funky RGB." This instructs the colour management system, if one is being used, to map these values to a yellow colour before displaying them.

So, if the image is displayed without colour management the car is purple. If colour management is active then the car will be yellow.

Cool, eh?

Cheers,
Rick.

Last edited by RickS; 06-07-2015 at 01:40 PM.
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  #14  
Old 06-07-2015, 08:41 PM
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Purple in IE (Windows8) and purple on iPhone.
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  #15  
Old 06-07-2015, 09:05 PM
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Yellow in GIMP (Win7) ...
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  #16  
Old 07-07-2015, 10:15 AM
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Hmmm... never checked it in other browsers. Let's see:

Chrome: yellow
IE: would not open the page (who cares... who uses IE????!!!!!!!!!)
Firefox: yellow
Maxthon: yellow

PS: yellow with management on, purple if turned off.
Paint: purple (I too had NEVER opened paint since installing Win 7...)
PixInsite: purple
MaxIM: Purple
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  #17  
Old 07-07-2015, 12:41 PM
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Quote:
Originally Posted by RickS View Post
The image has RGB values that would normally be interpreted as a purple colour in any typical colour space. A couple of samples are <R=103,G=0,B=177> and <R=165,G=0,B=235>. If you display these values directly on almost any screen you'll get a purple colour.

The image also has an embedded colour profile called "Jeffrey's Funky RGB." This instructs the colour management system, if one is being used, to map these values to a yellow colour before displaying them.

So, if the image is displayed without colour management the car is purple. If colour management is active then the car will be yellow.

Cool, eh?

Cheers,
Rick.
Thanks Rick ... well there yah go...
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  #18  
Old 07-07-2015, 03:29 PM
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Yellow on my 2 (calibrated) PC's. Purple on the iPad.
Geoff
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  #19  
Old 07-07-2015, 04:16 PM
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Quote:
Originally Posted by ghsmith45 View Post
Purple on the iPad.
Seeing this I tried my phone and it's purple on both Chrome and FF on Android.
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  #20  
Old 07-07-2015, 11:32 PM
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Yellow in Safari on the Mac and, after saving, in Preview.

Purple in Safari on iOS and, after saving, in Photos.
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