pypng_create_grayscale_png_from_pixel_list.py

1import png
2
3# A list of lists, each internal list represents a row of pixels.
4# This example creates a 3x2 image with grayscale values.
5s = [[0, 255, 128], [255, 0, 64]]
6
7# Open a file in binary write mode
8with open('swatch.png', 'wb') as f:
9    # Initialize a Writer object with width and height
10    w = png.Writer(len(s[0]), len(s), greyscale=True)
11    # Write the image data to the file
12    w.write(f, s)