[PyQt] QPixmap / QImage from numpy or string

[Antonio Valentino]

Il giorno Sun, 28 Jun 2009 10:34:21 +0200
Michael Held <michael.held at bc.biol.ethz.ch> ha scritto:

> hi,
> 
> I am trying to create a QImage from a numpy array directly. this is
> not supported yet, right?
> has anybody tried to load a numpy array via a string into a QImage,
> like

Hi Michael, 
in my code I use the following function

http://sourceforge.net/apps/trac/gsdview/browser/trunk/gsdview/qt4support.py#L64

It should work enough for 8bit grayscale images but it is not tested
for other image formats.

> a = numpy.zeros((100,50))
> image = QImage(a.tostring(), a.shape[0], a.shape.[1], a.shape[0],
> OImage.Format_Mono)

Providing bytesPerLine argument seems a good approach!
What kind of problems do you have with this code?


> thanks a lot!
> michael
> 
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-- 
Antonio Valentino