How to Remove White Space from Saved Matplotlib Images?

Eliminating White Space in Saved Images

When saving images after manipulating them using matplotlib, you may encounter unwanted white space surrounding the saved image. This can be frustrating, but there is a simple solution.

By default, matplotlib adds padding around the image during the save process. To remove this, you can set the bbox_inches parameter of the savefig method to "tight". This will ensure that the saved image is cropped to the exact size of the image data.

Example:

<code class="python">import matplotlib.image as mpimg
import matplotlib.pyplot as plt

fig = plt.figure(1)
img = mpimg.imread("image.jpg")
plt.imshow(img)

extent = fig.get_window_extent().transformed(fig.dpi_scale_trans.inverted())
plt.savefig('1.png', bbox_inches='tight')</code>

Additional Considerations:

• Draw Graph Issue: You mentioned that you are encountering white space when saving a figure that includes a graph created using NetworkX. Ensure that you have set bbox_inches='tight' correctly, and that you are setting the extent variable correctly in this case as well.
• Duplicate Questions: There are several related questions on this topic, including "Removing white space around a saved image" and "Possible duplicates."

By following these instructions, you should be able to eliminate the white space padding around your saved images. Remember to use bbox_inches='tight' when calling savefig to ensure a clean and accurate representation of your image data.

The above is the detailed content of How to Remove White Space from Saved Matplotlib Images?. For more information, please follow other related articles on the PHP Chinese website!