Is there a way to use Pillows “Image.convert()” on an existing variable?

Question

Hello,

maybe this question looks stupid, but I try to use Pillows Image.convert() to convert an image to grayscale. This image I have store

Answer 1

You can use

img = Image.fromarray(img)

to convert to a PIL Image type. From there, you should be able to use PIL's convert() function

img = img.convert('LA')

then, to access the pixel values directly you can either convert back to a numpy array

img_array = np.asarray(img)

or get pixel access to the PIL Image using

pixels = img.load()