Image.crop() method - Python PIL

Image.crop() method in PIL (Python Imaging Library) is used to extract a specific rectangular region from an image. It takes a box defined by four coordinates left, upper, right and lower and returns only that selected area as a new image. Example: This example shows how to open an image and crop a rectangular portion using the coordinates (left, top, right, bottom).

Image used:

Output

Explanation: img.crop((50, 50, 200, 200)) extracts the area from x=50 to 200 and y=50 to 200.

Syntax

Image.crop(box=None)

Parameters: box - A 4-tuple defining the crop area -> (left, upper, right, lower)

Return Value: Returns a new Image object containing only the cropped region.

Example 1: This example crops the central portion of the image using manually defined coordinates that cut from each side.

Image used:

Output

Explanation: img.crop((20, h//4, w-20, 3*h//4)) selects the middle horizontal strip of the image.

Example 2: This example extracts a smaller object located in the top-right part of the image.

Image Used:

Output

Explanation: coordinates (150, 40, 320, 200) target a specific rectangle in the upper-right corner.