2. ImageDraw draw

See: https://pillow.readthedocs.io/en/stable/reference/ImageDraw.html#PIL.ImageDraw.ImageDraw.Draw

See: https://www.blog.pythonlibrary.org/2021/02/23/drawing-shapes-on-images-with-python-and-pillow/

For HTML colour names that can be used See: https://www.w3schools.com/tags/ref_colornames.asp

The ImageDraw module provides simple 2D graphics for Image objects. You can use this module to create new images, annotate or retouch existing images, and to generate graphics on the fly for web use.

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2.1. Draw

Use the ImageDraw.Draw(im, mode=None) method to create a new draw object that can be used to draw in the given image, modifying the image, in place.

mode - Optional mode to use for color values. For RGB images, this argument can be RGB or RGBA (to blend the drawing into the image). For all other modes, this argument must be the same as the image mode. If omitted, the mode defaults to the mode of the image.

The code below draws a blue rectangle on a new white image.

Firstly, a new image, im, is made: im = Image.new('RGB', (256, 256), "white")

The image, im, is passed into the Draw method: drw = ImageDraw.Draw(im, 'RGB').

Then a rectangle is drawn.

Then the image is saved.

from PIL import Image, ImageDraw

im = Image.new('RGB', (256, 256), "white")
drw = ImageDraw.Draw(im, 'RGB')

drw.rectangle((20, 40, 236, 216), fill ="blue")
im.save("ImageDraw/ImageDraw_draw.jpg")