On Monday 31 July 2006 09:32, JIM MacDonald wrote:
> > The resolution for Postscript is 72 dpi, and I'm not sure this can be
> > changed. Would you send me an example postscript file along with the
> > original png?
>
> Sure,
> http://jimmacdonald.co.uk/matplotlib/image.png
> http://jimmacdonald.co.uk/matplotlib/image.eps
> http://jimmacdonald.co.uk/matplotlib/image.py
>
> image.py generates image.eps from image.png. image.png is simple
> enough for ps2pdf not to use DCT encoding. Looking at the postscript
> shows that the image has resolution of 335x230 compared to the
> original of 318x301.
I don't think this is a problem with the postscript backend. You're rescaling
the image in your script. Try something like this:
from pylab import *
rc('text', usetex=True)
rc('ps', usedistiller="xpdf")
figure(1,figsize=(6, 4))
im=imread('image.png')
imshow(im,interpolation='nearest')#,extent=[0.98, 20, 0.01, 0.5])
#axis('normal');
savefig('image.eps')
Darren
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