CODEWITHSUNDEEP
python-3.xpython-imaging-library
nipunasudha
nipunasudha

Reputation: 2607

Erasing a rectangular area of PIL image

How can I erase and make transparent a rectangular area of a PIL image, without changing dimensions?

I implemented this by cropping the image & pasting on an empty image, but it cannot erase an area inside the image. My implementation is mostly just arithmetic, so I am trying to find a more elegant way of doing this.

Upvotes: 1

Views: 2421

Answers (2)

thomasrutter
thomasrutter

Reputation: 117313

Given what you are "pasting" is just a uniform (transparent) color value, you don't need to create a separate image for the rectangle you're pasting, you can just pass a single color value to paste().

from PIL import Image

color = (255, 255, 255, 0)
paste_pos = (200, 400, 100, 300)

im = Image.open("your-image.jpg").convert("RGBA")

im.paste(color, paste_pos)
im.show()

Upvotes: 0

ATOMP
ATOMP

Reputation: 1489

You need to open it in RGBA mode.

from PIL import Image

rect_size = (100, 300)
rect_pos = (200, 400)

im = Image.open("your-image.jpg").convert("RGBA")
rect = Image.new("RGBA", rect_size, (255, 255, 255, 0))
im.paste(rect, rect_pos)
im.show()

Upvotes: 3

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