Le 17-10-25 à 04:44, Ive a écrit :
> Watch this image in it's original size (1920 x 1080)- otherwise it is 
> completely useless.
> 
> With a decent monitor you should see (from top to bottom):
> 12 "black" boxes.
> A continuous gray-scale without vertical banding.
> 12 "white" boxes.
> 9 "gamma" boxes where the one labeled 2.2 should match the background.
> 
> With a not so decent monitor you are probably unable to distinguish the 
> 4 top-left black boxes and might also see some vertical banding lines 
> within the continuous gray-scale. But if you still see 8 top right 
> "black" boxes and the 12 white ones you are OK - you just didn't want to 
> spend too much money on your viewing device.
> 
> In case you see less than 8 "black" boxes or less than 12 "white" boxes 
> or get strong banding lines you should at least be aware that your 
> monitor is unsuited for judging images and the images you produce with 
> POV-Ray will look very different (most likely quite flat) when viewed by 
> someone with a decent monitor.
> 
> 
> Note that this just tells something about the basic contrast, brightness 
> and gamma properties of the monitor - and nothing about it's ability to 
> render colors properly.
> 
> -Ive

On my HP L1710, I can see all black and white boxes.
The grey band is quite smooth.
The problem is with the gamma boxes. Impossible to get  match: the lined 
part look coloured. Time to look at the colour setting of the OS...

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