Plotting Images

Andr andre.roberge at gmail.com
Tue Jul 31 16:33:35 CEST 2007


On Jul 31, 8:41 am, Pei-Yu CHAO <peiyu_c... at yahoo.com.tw> wrote:
> Hi ALL:
>
> I have only been switched from matlab to python few
> months ago. I having trouble of plotting images from a
> matrix size of 8x10000 (unfortunately that is the size
> of my data.....)
>
> for example,
> x = rand(8,10000)
> inshow(x)
>
> I have tried to use matplotlib function imshow(), but
> all i get is a long thin line (unable to see the color
> display and the my matrix information).
>
What is the screen size of your image?  If it's scaled down so that
the largest dimension is 1000px, then the smaller dimension will be
reduced to 1px.

Try breaking your image into various "strips".

HTH,
Andr 

> i think imshow() has the same problem in matlab, but i
> think there is a alternative in matlab, imagesc().
>
> I did search on web about plt.imagesc().....but when i
> try to run the example code, python just tell me
> cannot find module plt.
>
> >>>from scipy import plt
>
> ImportError: cannot import name plt
>
> I have installed scipy, wxpython2.6....and it still
> seem not to work!
>
> is there some alternitive? or what have i done wrong?
> Thank you
>
> Pei
>
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