In [1]:

    

import numpy as np


    

In [2]:

    

x = np.array([1,2,34,5])


    

In [3]:

    

print x.astype(float)


    

    




[  1.   2.  34.   5.]

In [5]:

    

from scipy import misc


    

In [6]:

    

l = misc.lena()


    

In [7]:

    

misc.imsave('lena.png',l)


    

    




---------------------------------------------------------------------------
IOError                                   Traceback (most recent call last)
<ipython-input-7-1c666083917d> in <module>()
----> 1 misc.imsave('lena.png',l)

/home/aris/anaconda/lib/python2.7/site-packages/scipy/misc/pilutil.pyc in imsave(name, arr, format)
    166     im = toimage(arr)
    167     if format is None:
--> 168         im.save(name)
    169     else:
    170         im.save(name, format)

/home/aris/anaconda/lib/python2.7/site-packages/PIL/Image.pyc in save(self, fp, format, **params)
   1431         if isStringType(fp):
   1432             import __builtin__
-> 1433             fp = __builtin__.open(fp, "wb")
   1434             close = 1
   1435         else:

IOError: [Errno 13] Permission denied: 'lena.png'

In [ ]:

    

import mat