Access/Edit pixel values of a jpeg image in python -



Access/Edit pixel values of a jpeg image in python -

i'm involved in image processing project , utilize python. i'm new python, please bear lack of knowledge. want read jpeg image, split r,g,b. have alter add together value each pixel r,g,b separately. finally, have merge 3 of them create new image , save it.

from pil import image im = image.open("/home/pi/desktop/codes/lena.jpg") im.show() r,g,b =im.split()

are r,g,b matrices containing pixel values? can alter values of pixels directly? , can 1 please tell me how access each pixel?

first split image individual bands.

then maniplulate each pixels want using point.

then merge 3 bands using merge.

the split method returns tuple

image.split() split image individual bands. method returns tuple of individual image bands image. example, splitting “rgb” image creates 3 new images each containing re-create of 1 of original bands (red, green, blue).

python jpeg python-imaging-library

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