Computer Art

There is no must in art because art is free.

Introduction

The following tutorial exaplains how to generate computer art based on a series of predefined digital images. Our script will combinate all the digital images generating an specific image collection

Example Case

We will use the following digital assets:

• 4 x backgrounds images
• 12 x bodies images
• 12 x faces images

Expected Results

Our script will generate 576 new images as a result of combinate 4 x 12 x 12 (backgrounds, bodies, and faces).

Environment

The script was successfully tested with:

• Python 3.8.5
• Pip 21.2.4
• Pillow 8.3.2

Digital Assets

There is an images folder with 3 sub-folders

• /images/backgrounds
• /images/bodies
• /images/faces

Inside each sub-folder there is a few transparent png files named with 2-left pad zero strategy, for example: 01.png, 02.png, ..., 11.png

Script Strategy

1. Import Pillow Module

# importing the Pillow module
from PIL import Image, ImageDraw, ImageFilter

2. Define how many digital assets will combine

# my primary source :D
kBackgrounds = 4
kBodies = 12
kFaces = 12

3. Loop in order

for index_background in range(1, kBackgrounds + 1):
    for index_body in range(1, kBodies + 1):
        for index_face in range(1, kFaces + 1):

4. Load the 3 images that will generate the current new image

            im1 = Image.open(/path/to/index_background.png)
            im2 = Image.open(/path/to/index_body.png)
            im3 = Image.open(/path/to/index_face.png)

5. Paste img2 and img3 into img1 in the right position

The magic happens because all the bodies and all the faces have the same canvas/size!

            # paste body into background
            im1.paste(im2, (540, 1970), mask=im2)
            # paste face into background
            im1.paste(im3, (456, 370), mask=im3)

6. Save & continue the loop with the next combination!

            # save!
            im1.save(/path/to/new-image.png)

            # update status!
            print(/path/to/new-image.png, "was successfully created.")

Bye!