From: Detlef Reichl <detlef.reichl@...>
Date: 2006-01-07T20:48:29+09:00
Subject: Re: RMagick exporting pixels as string

Am Samstag, den 07.01.2006, 19:29 +0900 schrieb Ilmari Heikkinen:
> On 1/7/06, Ilmari Heikkinen <ilmari.heikkinen@gmail.com> wrote:
> > Hi,
> >
> > I'm exporting pixels to an OpenGL texture from Magick::Image
> > using export_pixels.
> >
> > The problem is that it's slow.
> > 5.5 seconds for a 330x370 image -slow.
> >
> > Is there a faster way to do this:
> >
> > image.export_pixels(0,0, cols, rows, "BGRA").pack("c*")
> 
> 
> Did some more timing and pinpointed the problem:
> export-bgra: 0.557612
> pack: 4.761164
> 
> export_pixels isn't quite the speed demon, but pack's
> the real problem.

Hi,

try image.to_blob, that will return the image data as a string.

Cheer
detlef