PIL show() not working for 2nd pic

[suresh.amritapuri]

On Jan 8, 6:32 am, McColgst <mccol... at gmail.com> wrote:
> Do you get any errors or warnings?
> Could we see the code you ran to get this problem?
>
> Thanks
> Sean

I used to get no such file or directory showing some files in /tmp
directory. But today I am getting a different type of message, which
appeared yesterday also.

(eog:8368): Gtk-CRITICAL **: gtk_tree_model_get_iter: assertion `path-
>depth > 0' failed

(eog:8368): Gtk-CRITICAL **: gtk_list_store_get_value: assertion
`VALID_ITER (iter, list_store)' failed

(eog:8368): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.20.1/
gobject/gtype.c:3940: type id `0' is invalid

(eog:8368): GLib-GObject-WARNING **: can't peek value table for type
`<invalid>' which is not currently referenced
Segmentation fault

-----------code----------------------
#!/usr/bin/python
print "Aum Amriteshwaryai Namaha"

import Image

imagePath = "/home/suresh/EE241/book_images_3ed/ch03/"

im34 = Image.open(imagePath + "breast_digital_Xray.tif")
im35 = Image.open(imagePath + "DFT_no_log.tif")
im35.show()

def neg(x):
    return 255-1-x

import math

def logtr(x):
    y = math.log(1+x,10)
    print y
    return y*100

im34x = im34.point(neg)
im34x.show()

im35x = im35.point(logtr)
im35x.show()
---------------------------------------end of code
Any ideas?

Thanks
suresh