How to remove grid lines

Question

I am using google colab for my project. I am getting grid lines on images even I am not writing them.

from matplotlib import pyplot as plt %matplotlib inline import cv2 img = cv2.imread('k15.jpg') img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) plt.imshow(img)

for code like above, I am getting grid lines which is not the case when I run the same code in my python shell.

The code you show is probably not the one responsible for the gridlines. Do they still appear if you start with a fresh kernel? — ImportanceOfBeingErnest
– ImportanceOfBeingErnest, Commented May 27, 2018 at 18:58
yes.I think its something related to google colab. it's weird.... — Karan Purohit
– Karan Purohit, Commented May 28, 2018 at 15:59

kawingkelvin · Accepted Answer · 2018-06-02 02:16:03Z

29

plt.imshow(myImage) plt.grid(None) <---- this should remove that white grid

answered Jun 2, 2018 at 2:16

kawingkelvin

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2 Comments

kawingkelvin Over a year ago

Actually, plt.grid() will also remove the grid, so dont have to even type 'None'

Thomas Ahle Over a year ago

This worked very well, until I tried adding a twin axis at the top of my plot with ax.twiny(). Now none of the methods here work anymore :(

ImportanceOfBeingErnest · Accepted Answer · 2018-05-28 16:59:15Z

Apparently something in the background changes the style. I have no experience whatsoever with google colab ti judge whether this can be responsible for the observed difference in displayed image.

In any case it should be possible to manually turn the grid lines off on a per notebook basis.

%matplotlib inline from matplotlib import pyplot as plt plt.rcParams["axes.grid"] = False # rest of code

That's finally solved my problem. I was looking for somehow to stop this but couldn't find any. Thanks!!

python Jocker · Accepted Answer · 2018-05-26 16:58:01Z

0

If you don't mind using a different packet, you can pretty much do it easily with PIL or Pillow

from PIL import Image img = Image.open('C:\...\k15.jpg') img.show()

edited May 26, 2018 at 16:58

answered May 26, 2018 at 15:05

python Jocker

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3 Comments

python Jocker Over a year ago

When you open it in PIL you need to provide the entirety of the image's path

Karan Purohit Over a year ago

there is no path as I am using it on google colab. also, same script is working fine on local python shell.

Morten Engelsmann May 27 at 8:17

@KaranPurohit You can show files, then right click on the image file and choose Copy path.

tsveti_iko · Accepted Answer · 2022-03-09 15:11:47Z

The above answer didn't work for me in an Jupyter Notebook. Here is an alternative solution - after every imshow you need to disable the grid like this:

... plt.imshow(image) plt.grid(False) ...

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