CODEWITHSUNDEEP
pythonopencvscikit-image
Johnny Candie
Johnny Candie

Reputation: 1

How to display a jpg image in Python with Scikit-Image library

Trying to complete a simple school exercise but I'm stuck at the beginning. This is the code that doesn't work:

from skimage import io

img = io.imread('mypic.jpg')
io.imshow(img)
io.show()

After execution I get this error:

Exception in Tkinter callback Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1536, in __call__
return self.func(*args)
File "/usr/lib/python2.7/site-packages/matplotlib/backends/backend_tkagg.py", line 283, in resize
self.show()
File "/usr/lib/python2.7/site-packages/matplotlib/backends/backend_tkagg.py", line 355, in draw
tkagg.blit(self._tkphoto, self.renderer._renderer, colormode=2)
File "/usr/lib/python2.7/site-packages/matplotlib/backends/tkagg.py", line 26, in blit
_tkagg.tkinit(tk.interpaddr(), 1)

OverflowError: Python int too large to convert to C long

I also tried the same thing with OpenCV library and I got a similar result: Code

import numpy as np
import cv2

img = cv2.imread('mypic.jpg',0)
cv2.imshow('image',img)
waitKey(0)

Error:

OpenCV Error: Assertion failed (size.width>0 && size.height>0) in imshow, file /builddir/build/BUILD/opencv-2.4.12.3/modules/highgui/src/window.cpp, line 261
Traceback (most recent call last):
File "imagetry.py", line 6, in <module>
cv2.imshow('lasta',img)
cv2.error: /builddir/build/BUILD/opencv-2.4.12.3/modules/highgui/src/window.cpp:261: error: (-215) size.width>0 && size.height>0 in function imshow

I'm running this on 32-bit Fedora 24 and Python 2.7. I would really appreciate your help!

Upvotes: 0

Views: 1890

Answers (1)

Hariprasad
Hariprasad

Reputation: 406

The basic way of reading an image in python using open CV is as follows

import cv2

img = cv2.imread('mypic.jpg',0)
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()

Upvotes: 1

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