How to crop elliptical region from image using Python

Question

I have code for rectangle cropping ,Honestly I'm beginner to python this code was i saw on a site

I'm using PIL library

from PIL import Image
im = Image.open("lenna.png")

crop_rectangle = (50, 50, 200, 200)
cropped_im = im.crop(crop_rectangle)

cropped_im.show()

please help me to crop ellipse or circle region from a image thank you in advance

Possible duplicate of [How do I generate circular thumbnails with PIL?](https://stackoverflow.com/questions/890051/how-do-i-generate-circular-thumbnails-with-pil) — Ofer Sadan, Jun 04 '18 at 09:00
Title and the content does not match. You are not using openCV in your code. — BcK, Jun 04 '18 at 09:06

score 0 · Answer 1 · answered Jun 04 '18 at 09:21

Cropping an image to an elliptical or circle region will produce the same results as cropping to a square, if their extents are the same. I am assuming that you also want to mask the image as well as crop?

To do this, create a blank mask PIL Image with the same extent as the original, use PIL.ImageDraw.Draw to draw a polygon onto the image. The mask image should now now have binary pixel values where "1" represents masked. Then simply set all values in the original image to a masked value (i.e. np.nan) where the mask pixel values equal 1 (e.g. original_image[mask == 1] = np.nan).

How to crop elliptical region from image using Python

1 Answers1