[Mapserver-users] Transparency values - confusion

[randy james]

Hi

I have been testing outputformat and switching between
PNG and PNG24 and never had to change anything. Have
you been using outputformat?

Cheers
Randy

--- Dylan Keon <keon at nacse.org> wrote:
> Havard Tveite wrote:
> > For IMAGETYPE PNG in my build, a TRANSPARENCY
> value of 90
> > gives me 10 % transparency, while for IMAGETYPE
> PNG24 and
> > IMAGETYPE JPEG, a TRANSPARENCY value of 90 gives
> me 90%
> > transparency (for me, the latter is the expected
> behaviour).
> 
> I've noticed the same thing in 3.7.  When I switch
> between 8-bit and 
> 24-bit output I have to invert my transparency
> values (i.e., change 25 
> to 75 and vice-versa) to get the same effect.
> 
> --Dylan
> 
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