python - Saving a Numpy array as an image

Question

I have a matrix in the type of a Numpy array. How would I write it to disk it as an image? Any format works (png, jpeg, bmp...). One important constraint is that PIL is not present.

Answer 1

An answer using PIL (just in case it's useful).

given a numpy array "A":

from PIL import Image
im = Image.fromarray(A)
im.save("your_file.jpeg")

you can replace "jpeg" with almost any format you want. More details about the formats here