I'm using Matplotlib in a Jupyter Notebook to display an image of a map. The code looks like this:
%matplotlib inline
imgpath = './map.png'
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
import numpy as np
from PIL import Image
img = Image.open(imgpath)
print(img.size)
width, height = img.size
# img.thumbnail((width * 2,height * 2), Image.ANTIALIAS) # resizes image in-place
imgplot = plt.imshow(img)
plt.savefig('test.png', dpi = 300)
The problem is, although the plt.savefig('test.png', dpi = 300)
looks fine (because I changed the dpi to 300), the image displayed in the notebook is so low resolution I can't make anything out on it, and plt.imshow(img, dpi = 300)
doesn't work:
So what I'm wondering is if there is a way to change the resolution of the image shown in the Jupyter Notebook?
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…