Sorry typo before the original was 255,250,0, I open my Original 255,250,0 image in chrome and then save it from chrome then open it in PS it’s still 255,250,0
[quote=121728:@Michel Bujardet]If I save the rendered image that was originally 255-255-0 on Mac from Chrome, I get 253-253-10. On PC I get 255-250-0. These values are exactly identical to what a screen capture would have produced. So the only conclusion is that somehow Xojo is employing the very same routines that the system uses to display the picture.
When I capture the original image rendered on screen, the very same values apply. So in effect, the original picture 255-255-0 arrives in the eye of the user as 253-253-10 on Mac and 255-250-0 on PC.
If I capture the screen for the same image on the Chrome display from the Xojo application, I get 255-253-10. The original picture dragged into chrome produces identical results : 255-253-10.
It seems that whatever the source, the resulting image as rendered by Chrome is never 255-255-0.[/quote]
I’ve read what you have written and don’t agree based on my testing, please see the following video
https://dl.dropboxusercontent.com/u/76235150/Xojo/Colour/ChromeYellow.mov
Sigh. I am not getting through. For the last time :
- If I drag your original picture in Photoshop, I get 255-255-0. That was never in question ! ! !
What I tried to explain (sigh again) is that in order to measure the color differences, one has to effectively capture the pixels on screen, and then drag the result in Photoshop.
Now please excuse me, I have wasted enough time. I see you do not even try to follow. End of discussion 
You’re not getting it you don’t need to use screen capture to test this, screen capture is the issue.
Another video clearly showing the issue, https://dl.dropboxusercontent.com/u/76235150/Xojo/Colour/XojoColour.mov
Using save as does not alter the image like taking a screenshot does.
[quote=121743:@Graham Spratt]You’re not getting it you don’t need to use screen capture to test this, screen capture is the issue.
Another video clearly showing the issue, https://dl.dropboxusercontent.com/u/76235150/Xojo/Colour/XojoColour.mov
Using save as does not alter the image like taking a screenshot does.[/quote]
Look. What you see on the screen is the rendition a particular app is making from the picture data. For reasons beyond this thread, current image formats are not exact, and when an app such as Chrome or Preview displays it, it calculates the closest approximation for the screen.
You play with the pictures, I measure the rendition on screen. I asked for the courtesy of a careful reading, I see that you never had any intention of paying attention to what I was trying to convey. Have a good evening playing video movies. Sometimes I should abstain discussing with thick minds
All very well and good but once you start using SAVE AS your are saving the image as is and not how the monitor decides to display it.
If you then compare these images this is when you get the true picture.
I’m not prepared to have you speak to me like that, I think it’s me that needs to abstain discussing things with people with thick minds…
Two questions for someone who is able to listen, reason for asking is when testing on Windows my yellow 255,250,0 remains 255,250,0 this appears to be an issue with Xojo on OS X.
I guess this could be due to what Michel said regarding Xojo might be employing the very same routines that the system uses to display things and because of this it’s causing image to be changed.
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What does Xojo do when importing an image into it and is this the same if running on OS X or Windows?
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Why does xojo not use the original png file provided why does it modify it.
Changes it.
Makes it duller.
Been that way for years, and its a nuisance.
[quote=121761:@Jeff Tullin]Changes it.
Makes it duller.
Been that way for years, and its a nuisance.[/quote]
Thanks Jeff
It doesn’t seem to do it when running the IDE on Windows, are you running Windows or OS X
Me, most noticeably in OSX
You can usually see the difference by eye.
Load a photo in an image editor or Preview, and load it then display it in a canvas in Xojo
There is a difference.
Has been for as long as I remember.
Check out this topic:
http://forums.realsoftware.com/viewtopic.php?f=7&t=44421&hilit=color
[quote=121766:@Jeff Tullin]Me, most noticeably in OSX
You can usually see the difference by eye.
Load a photo in an image editor or Preview, and load it then display it in a canvas in Xojo
There is a difference.
Has been for as long as I remember.
Check out this topic:
http://forums.realsoftware.com/viewtopic.php?f=7&t=44421&hilit=color[/quote]
Thanks Jeff, tbh I can see it by eye and thats the issue…
Interesting enough even if you use a image with a profile it still has the same issue.
Does Xojo not support Color management?