matplotlib savefig in jpeg format

matplotlib jpeg figure
cedm34 picture cedm34 · Jan 11, 2012 · Viewed 123.7k times · Source

I am using matplotlib (within pylab) to display figures. And I want to save them in .jpg format. When I simply use the savefig command with jpg extension this returns :

ValueError: Format "jpg" is not supported.

Supported formats: emf, eps, pdf, png, ps, raw, rgba, svg, svgz.

Is there a way to perform this ?

Answer

Yann picture Yann · Jan 11, 2012

You can save an image as 'png' and use the python imaging library (PIL) to convert this file to 'jpg':

import Image
import matplotlib.pyplot as plt

plt.plot(range(10))
plt.savefig('testplot.png')
Image.open('testplot.png').save('testplot.jpg','JPEG')

The original:

enter image description here

The JPEG image:

enter image description here

Related questions

How do you change the size of figures drawn with matplotlib?

How do you change the size of figure drawn with matplotlib?

Read More
Save plot to image file instead of displaying it using Matplotlib

I am writing a quick-and-dirty script to generate plots on the fly. I am using the code below (from Matplotlib documentation) as a starting point: from pylab import figure, axes, pie, title, show # Make a square figure and axes figure(1, …

Read More
How do I set the figure title and axes labels font size in Matplotlib?

I am creating a figure in Matplotlib like this: from matplotlib import pyplot as plt fig = plt.figure() plt.plot(data) fig.suptitle('test title') plt.xlabel('xlabel') plt.ylabel('ylabel') fig.savefig('test.jpg') I want to specify font …

Read More