How to get pixel values of image in rgba format?

Asked Dec 14 '19 at 21:27

Active Dec 14 '19 at 21:34

Viewed 1,140 times

I'm trying to get the rgba values of the pixels of an image.

Google suggests I use code similar to this:

from PIL import Image
im = Image.open("C:/Stuff/image.png", "r")
px = list(im.getdata())

My problem is the data not always being in rgba format.

On some images it does return rgba

[(0, 0, 0, 255), (0, 0, 0, 255), (0, 0, 255, 255), [...]

while on others it returns rgb

[(0, 0, 0), (0, 0, 0), (0, 0, 255), [...]

and on some it returns whatever this is

[0, 0, 1, [...]

Is there a way to always get rgba returned?

edited Dec 14 '19 at 21:34

martineau

asked Dec 14 '19 at 21:27

dtpnftscdsatp

2

Not all images have rgba data, so you would have to write a wrapper function to convert to whatever format you want. – Mad Physicist Dec 14 '19 at 21:29
4

You don't need a wrapper function, just use `im = Image.open("C:/Stuff/image.png", "r").convert("RGBA")` – martineau Dec 14 '19 at 21:32
Have a read here... https://stackoverflow.com/a/52307690/2836621 – Mark Setchell Dec 14 '19 at 22:23

0 Answers0