Am 31.12.2010 07:48, schrieb Dave Blandston:

>>> Whoa!!! Gamma problems again - sorry. If anyone's interested I'll fix it and
>>> re-post the picture.
>>
>> To me it looked good as posted.
>
> Internet Explorer shows it washed-out. Only the small preview looks right on my
> computer. I'll check my settings...

 From what I can see in the PNG header, you're using pretty 
unconventional gamma settings. For starters, File_Gamma=1.0 is generally 
not a good idea as it leads to the Windows Explorer thumbnail preview 
appearing differently. And as a matter of fact it's usually the 
thumbnail preview that lies to you, unless you have an exceptionally 
uncommon display gamma.

My guess is that you're using File_Gamma=1.0 and Display_Gamma=1.0, 
while actually having a display with a gamma of around 2.2.

The Display_Gamma=1.0 will make the image look the same in 3.7 beta 
preview render as if you had used assumed_gamma 2.2 in 3.6 with 
Display_Gamma=2.2, while the File_Gamma=1.0 will not have any visible 
effect on PNG files (except for viewers that ignore gAMA chunks, such as 
Windows Explorer's thumbnail generator) - it will just make the output 
more susceptible to banding artifacts.

While it /may/ be that you adjusted your display for a gamma of 1.0, it 
is both uncommon (typical values are around 2.2, give or take) /and/ 
will make virtually all of your software display nonsense unless you 
also informed Windows of the fact (or each piece of software separately, 
but only few pieces of SW provide a means to tell them about your 
display gamma).

Whatever you're doing there regarding gamma, you're probably doing 
/something/ fundamentally flawed.

And it's likely that you have a different taste than me: I do prefer the 
washed-out version, especially for a wallpaper.

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