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Graphics > OpenGL 3D API > Re: Histogram c...
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Re: Histogram calculation

by Knockr <CSarath@[EMAIL PROTECTED] > Jul 7, 2008 at 09:01 PM

On Jul 5, 5:26=A0pm, fungus <openglMYSO...@[EMAIL PROTECTED]
> wrote:
> On Jul 4, 12:41=A0pm, Knockr <CSar...@[EMAIL PROTECTED]
> wrote:
>
> > How much efficient is the histogram calculation provided by
> > OpenGL(glHistogram)?
>
> It will depend on the graphics card ....
>
> ... but if you're imagining hardware acceleration and
> parallel processing then I think it's 99% probable
> that you'll be disappointed.
>
> > Is there any better way?
>
> Download the image in "tiles" in one thread
> and use SSE instructions in another thread
> to calculate the histogram of the blocks as
> they arrive.
>
> --
> <\___/>
> / O O \
> \_____/ =A0FTB. =A0 =A0 Remove my socks for email address.

Thank you for your reply.
 




 3 Posts in Topic:
Histogram calculation
Knockr <CSarath@[EMAIL  2008-07-04 03:41:20 
Re: Histogram calculation
fungus <openglMYSOCKS@  2008-07-05 05:26:05 
Re: Histogram calculation
Knockr <CSarath@[EMAIL  2008-07-07 21:01:14 

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