[Gimp-developer] Blur tool darkens image?

[Sven Neumann]

Hi,

On Wed, 2007-04-25 at 02:41 +1000, Jasper Schalken wrote:
> This is what I thought was a bug (I posted
> herehttp://bugzilla.gnome.org/show_bug.cgi?id=432978) but Sven Neumann
> says I should discuss it on here first.

Your video shows the blur tool being used on large areas of black color
and small areas of white color. The average of this is a dark gray. Now
when you continue to blur, you are mixing a dark gray with black. If you
go further, you end up with all black.

But there could very well be rounding errors in the blur tool code.
There are even most definitely rounding errors as we are only working
with 8bit per channel and rounding errors are unavoidable then. But
please take a look at the code and see if there's anything we could
change to improve this.


Sven