The example assumes that the file is a dump of uin16 512x512 array. So, no doubt that it won't work with a png file.
See http://matplotlib.sourceforge.net/users/image_tutorial.html -JJ On Tue, Mar 23, 2010 at 9:41 AM, yogesh karpate <yogeshkarp...@gmail.com> wrote: > The 1st code snippet of image_demo2.py is as follows > > #!/usr/bin/env python > from pylab import * > > w, h = 512, 512 > s = file('../data/ct.raw', 'rb').read() > A = fromstring(s, uint16).astype(float) > > A *= 1.0/max(A) > A.shape = w, h > > I replaced s = file('../data/ct.raw', 'rb').read() with s = > file('/home/jaguar/Developemnt/image_demo2.png', 'rb').read() > > The image is same as in given demo example(its given in .png format) and > rest of code is also same..... > > when I run it it gives the error as " > A = fromstring(s, uint16).astype(float) > ValueError: string size must be a multiple of element size" > > WHat can be the error in program? I may asking stupid question Thanks in > advance ! > Regards > Yogesh > > > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
