[PyQt] QPixmap / QImage from numpy or string

Antonio Valentino antonio.valentino at tiscali.it
Sun Jun 28 11:26:32 BST 2009

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


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
> _______________________________________________
> PyQt mailing list    PyQt at riverbankcomputing.com
> http://www.riverbankcomputing.com/mailman/listinfo/pyqt

Antonio Valentino

More information about the PyQt mailing list