The dpi value, which can be overridden, will determine the size of the
output image. It looks to me like you just want the output to always
be the same size as your input image, so use imsave() instead of
imshow() followed by savefig() for this:
i.e. just do
map = Basemap(......)
pilImg = Image.open('bkgmap.gif')
rgba = pil_to_array(pilImg)
pyplot.imsave('outimg.png', rgba)
On Fri, Sep 23, 2011 at 9:10 AM, Isidora <isid...@juno.com> wrote:
> Hi,
>
> I am new to matplotlib so I may not have found the right answer because I am
> looking in the wrong places.
>
> I wrote a script to draw lines on a 800x600 pixels GIF background map. The
> output image I get is 620x450. Could someone let me know what I am doing
> wrong?
>
> Code Snippet:
>
> map = Basemap(......)
> pilImg = Image.open('bkgmap.gif')
> rgba = pil_to_array(pilImg)
> map.imshow(rgba)
> # Plot some lines and labels here
> ....
> pyplot.savefig('outimg.png',format='PNG',bbox_inches='tight',pad_inches=0)
>
>
> Thank you
>
>
>
>
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