How to display an image

Question

I tried to use IPython.display with the following code:

from IPython.display import display, Image
display(Image(filename='MyImage.png'))

I also tried to use matplotlib with the following code:

import matplotlib.pyplot as plt
import matplotlib.image as mpimg
plt.imshow(mpimg.imread('MyImage.png'))

In both cases, nothing is displayed, not even an error message.

score 362 · Accepted Answer · edited Dec 21 '22 at 04:04

362

If you are using matplotlib and want to show the image in your interactive notebook, try the following:

%matplotlib inline
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
img = mpimg.imread('your_image.png')
imgplot = plt.imshow(img)
plt.show()

edited Dec 21 '22 at 04:04

David Medinets

5,160
3
29
42

answered Feb 09 '16 at 09:09

Joe Bathelt

5,459
2
15
14

Thank you for your answer, it almost works :-) The image is displayed, but the gray levels are replaced using a fire lut. Any idea? – FiReTiTi Feb 09 '16 at 09:14
3

Try defining the colormap explicitly: plt.imshow(lum_img, cmap="grey") – Joe Bathelt Feb 09 '16 at 09:16
3

In my understanding, the last plt.show() command produces the display. Before that, you could add to the plot, e.g. by adding layers to the image. I recommend the matplotlib image tutorial as a reference: http://matplotlib.org/users/image_tutorial.html – Joe Bathelt Feb 09 '16 at 09:18
8

Thanks for your answers, now it works perfectly! Just a little details for the potential readers, it "gray" instead of "grey". – FiReTiTi Feb 09 '16 at 09:19
1

You could avoid using `matplotlib.image`: img = plt.imread('your_image.png') – Nir May 06 '20 at 09:41
@perfo he meant the argument 'gray' rather than how to spell the word. """ cmaps['Sequential (2)'] = [ 'binary', 'gist_yarg', 'gist_gray', 'gray', 'bone', 'pink', 'spring', 'summer', 'autumn', 'winter', 'cool', 'Wistia', 'hot', 'afmhot', 'gist_heat', 'copper'] """ – Ari Sep 10 '20 at 17:07
@Ari. I guess so. – perfo Sep 11 '20 at 19:45
If the image's resolution seems lower than the original, add this before the imread : `plt.figure(dpi=600)`. More detail [here](https://stackoverflow.com/questions/39870642/matplotlib-how-to-plot-a-high-resolution-graph) – kotchwane Nov 22 '20 at 15:16

score 55 · Answer 2 · edited Jun 21 '17 at 06:49

55

If you use matplotlib, you need to show the image using plt.show() unless you are not in interactive mode. E.g.:

plt.figure()
plt.imshow(sample_image) 
plt.show()  # display it

edited Jun 21 '17 at 06:49

mrk

8,059
3
56
78

answered Feb 09 '16 at 07:54

MaxPowers

5,235
2
44
69

Reading an other answer, I just got that I have to add plt.show() after the code I already have, instead of replacing the imshow. Thanks for your help. – FiReTiTi Feb 09 '16 at 09:16
I think this answers the question precisely as compared to the accepted answer. – Prasad Raghavendra Mar 28 '20 at 12:06

score 55 · Answer 3 · edited Apr 14 '20 at 07:34

55

In a much simpler way, you can do the same using

from PIL import Image

image = Image.open('image.jpg')
image.show()

edited Apr 14 '20 at 07:34

Dipanshu Mahla

152
1
16

answered Feb 09 '16 at 07:54

the_unknown_spirit

2,518
7
34
56

1

Thank you for your help. I've installed PIL and now it works. Any idea why the two methods I tried didn't work? – FiReTiTi Feb 09 '16 at 08:04
If failing to install PIL (as was the case for me), try Pillow, it worked like a charm for me. – mrk Jun 21 '17 at 07:25
1

I wonder how the `import Image` statement works; shouldn't it be `from PIL import Image`? – Laszlo Treszkai Jan 25 '20 at 21:58
1

This solution does not necessarily close the file descriptor. Instead, use it with a context manager: `with Image.open('image.jpg') as im: im.show()` – Laszlo Treszkai Jan 25 '20 at 21:58
What is this `Image` package? – Louis Yang Feb 17 '20 at 19:46
Image is from old PIL package, now use `from PIL import Image` – Lucas Vazquez Apr 05 '20 at 15:48

score 12 · Answer 4 · answered Feb 11 '19 at 06:47

12

Your first suggestion works for me

from IPython.display import display, Image
display(Image(filename='path/to/image.jpg'))

answered Feb 11 '19 at 06:47

Harry Moreno

10,231
7
64
116

This will always display first if there are also other plots, why is that? – Christos Karapapas Oct 24 '20 at 14:53
1

not sure. I'm not an ipython expert. There are several ways to show an image as you can see from the answers here. – Harry Moreno Oct 26 '20 at 15:07
Image is not being displayed in ubuntu terminal, any other tab is not opened to display the image. Do you have any answer for this. But it's working on colab – Senthil Vikram Vodapalli Mar 24 '21 at 06:12
This is the best answer!! – Nouvellie Aug 07 '21 at 11:13

score 9 · Answer 5 · answered Jan 24 '18 at 07:00

Using opencv-python is faster for more operation on image:

import cv2
import matplotlib.pyplot as plt

im = cv2.imread('image.jpg')
im_resized = cv2.resize(im, (224, 224), interpolation=cv2.INTER_LINEAR)

plt.imshow(cv2.cvtColor(im_resized, cv2.COLOR_BGR2RGB))
plt.show()

score 4 · Answer 6 · answered Jan 29 '18 at 14:47

4

It's simple Use following pseudo code

from pylab import imread,subplot,imshow,show

import matplotlib.pyplot as plt

image = imread('...')  // choose image location

plt.imshow(image)

plt.show() // this will show you the image on console.

answered Jan 29 '18 at 14:47

Ayush Srivastava

61
2

Fei Yao · Answer 7 · 2020-04-20T20:51:12.107

Using Jupyter Notebook, the code can be as simple as the following.

%matplotlib inline
from IPython.display import Image
Image('your_image.png')

Sometimes you might would like to display a series of images in a for loop, in which case you might would like to combine display and Image to make it work.

%matplotlib inline
from IPython.display import display, Image
for your_image in your_images:
    display(Image('your_image'))

score 3 · Answer 8 · edited Sep 06 '19 at 09:45

Your code:

import matplotlib.pyplot as plt
import matplotlib.image as mpimg

What it should be:

plt.imshow(mpimg.imread('MyImage.png'))
File_name = mpimg.imread('FilePath')
plt.imshow(FileName)
plt.show()

you're missing a plt.show() unless you're in Jupyter notebook, other IDE's do not automatically display plots so you have to use plt.show() each time you want to display a plot or made a change to an existing plot in follow up code.

score 2 · Answer 9 · answered Oct 11 '19 at 05:05

2

import IPython.display as display
from PIL import Image
image_path = 'my_image.jpg'
display.display(Image.open(image_path))

answered Oct 11 '19 at 05:05

Rajan saha Raju

794
7
13

score 1 · Answer 10 · answered Dec 25 '20 at 18:03

Solution for Jupyter notebook PIL image visualization with arbitrary number of images:

def show(*imgs, **kwargs):
    '''Show in Jupyter notebook one or sequence of PIL images in a row. figsize - optional parameter, controlling size of the image.
    Examples:
    show(img)
    show(img1,img2,img3)
    show(img1,img2,figsize=[8,8])
    '''
    
    if 'figsize' not in kwargs:
        figsize = [9,9]
    else:
        figsize = kwargs['figsize']
    
    fig, ax = plt.subplots(1,len(imgs),figsize=figsize)
    if len(imgs)==1:
        ax=[ax]
    
    for num,img in enumerate(imgs):
        ax[num].imshow(img)
        ax[num].axis('off')
        
    tight_layout()

Pausi · Answer 11 · 2021-04-08T13:58:45.883

0

To display images in python, you can use a tool that I made.

Install python3:
- apt install python3
Clone the repo:
- git clone https://github.com/404rgr/print-image-in-terminal
Install python required libs:
- cd print-image-in-terminal
- pip3 install numpy
- pip3 install pillow

Usage: python3 print_image.py [path to image]

Examples: python3 print_image.py sinchan.jpg

edited Apr 08 '21 at 13:58

answered Apr 08 '21 at 13:50

Pausi

134
2
7

How to display an image

11 Answers11

Linked