The PixelAccess class provides read and write access to :pyPIL.Image data at a pixel level.
Note
Accessing individual pixels is fairly slow. If you are looping over all of the pixels in an image, there is likely a faster way using other parts of the Pillow API.
The following script loads an image, accesses one pixel from it, then changes it.
from PIL import Image
im = Image.open('hopper.jpg')
px = im.load()
print (px[4,4])
px[4,4] = (0,0,0)
print (px[4,4])Results in the following:
(23, 24, 68)
(0, 0, 0)__setitem__(self, xy, color):
Modifies the pixel at x,y. The color is given as a single numerical value for single band images, and a tuple for multi-band images
- param xy
The pixel coordinate, given as (x, y).
- param value
The pixel value.
__getitem__(self, xy):
- Returns the pixel at x,y. The pixel is returned as a single
value for single band images or a tuple for multiple band images
- param xy
The pixel coordinate, given as (x, y).
- returns
a pixel value for single band images, a tuple of pixel values for multiband images.
putpixel(self, xy, color):
Modifies the pixel at x,y. The color is given as a single numerical value for single band images, and a tuple for multi-band images
- param xy
The pixel coordinate, given as (x, y).
- param value
The pixel value.
getpixel(self, xy):
- Returns the pixel at x,y. The pixel is returned as a single
value for single band images or a tuple for multiple band images
- param xy
The pixel coordinate, given as (x, y).
- returns
a pixel value for single band images, a tuple of pixel values for multiband images.