[SciPy-User] How to display a RGB image (MFISH)?

[jkhilmer at chemistry.montana.edu]

Jean-Patrick,

Your general approach worked for me.  I used a different function to
normalize the data, and I created 'rgb' as a uint8 from the start
rather than a float, but changing the dtype to float doesn't cause any
problems on my system.

Jonathan


On Mon, May 23, 2011 at 5:59 AM, jp <jeanpatrick.pommier at gmail.com> wrote:
> Hi,
>
> I have written a script to try to combine five images into a three channels
> RGB images.
> The resulting RGB image looks like a grey scale image instead of a color
> one.
>
> I have three np.array Rnorm, Gnorm, Bnorm which are copied into a rgb array:
>
> rgb = np.zeros((shape[0],shape[1],3),dtype=float)
> mxr=np.max(R)
> mxg=np.max(G)
> mxb=np.max(B)
> Rnorm=np.uint8((255*(R/mxr)))
> Gnorm=np.uint8((255*(R/mxg)))
> Bnorm=np.uint8((255*(R/mxb)))
> #copy each RGB component in an RGB array
> rgb[:,:,0]=Rnorm
> rgb[:,:,1]=Gnorm
> rgb[:,:,2]=Bnorm
>
> pylab.subplot(224, aspect='equal',frameon=False, xticks=[], yticks=[])
> pylab.imshow(rgb)
> pylab.show()
>
> Any advice?
>
> Thank you
>
> Jean-Patrick
>
>
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