How to Create an Image from the Average Mixture of Multiple Images using Pygame

What will you learn?

  • Learn how to combine multiple images into one by averaging their pixel values.
  • Utilize Pygame to accomplish this task effectively.

Introduction to the Problem and Solution

In this scenario, the challenge is to generate a new image by blending multiple input images pixel by pixel. This process involves loading each image, extracting pixel values, computing the average for corresponding pixels, and creating a new image based on these averages. The solution requires understanding how to manipulate images at a pixel level using Pygame.

To address this challenge proficiently: 1. Load all input images. 2. Retrieve pixel data from each image. 3. Calculate average RGB values for corresponding pixels across all images. 4. Generate a new image based on these averaged values.


import pygame

# Load all input images here (img1, img2, img3,...)
image_list = [pygame.image.load('image1.png'), pygame.image.load('image2.png'), pygame.image.load('image3.png')]

# Get dimensions from one of the loaded images
width, height = image_list[0].get_width(), image_list[0].get_height()

# Create a surface for our final blended image
final_image = pygame.Surface((width, height))

for x in range(width):
    for y in range(height):
        total_red, total_green, total_blue = 0, 0, 0

        # Calculate sum of RGB values across all input images for current position (x,y)
        for img in image_list:
            r,g,b,_ = img.get_at((x,y))
            total_red += r
            total_green += g
            total_blue += b

        # Average out the RGB values obtained above and set it in final blended image        
        avg_red = int(total_red / len(image_list))
        avg_green= int(total_green / len(image_list))
        avg_blue= int(total_blue / len(image_list))

        final_image.set_at((x,y), (avg_red ,avg_green ,avg_blue))

# Save or display your final blended result as needed

# Copyright PHD


To effectively solve this problem: – Load all input images using pygame.image.load(). – Obtain dimensions from any loaded image assuming they are of the same size. – Create a Surface object named final_image to store the resulting blend. – Iterate over each pixel position (x,y) within width and height: – Accumulate red (r), green (g), and blue (b) color intensities across all input pictures at that position. – Divide accumulated totals by the number of input pictures to get average per color channel. – Assign computed average RGB value back to final_image.

This process results in an output blend representing an average mix across multiple source inputs.

    How many input images can be blended together?

    You can blend any number of input images together; there is no fixed limit.

    Can grayscale or black-and-white photos be blended using this method?

    Yes! Even grayscale photos without distinct R,G,B channels can be effectively blended by averaging intensity levels.

    Is it necessary for source pictures’ sizes to match exactly?

    While not mandatory, ensuring uniformity among source picture sizes is recommended for seamless blending.

    What happens if source photos have transparency layers?

    Transparency layers may affect blending outcomes; consider removing alpha channels before processing if unwanted effects occur.

    Can code modifications enable weighting certain pictures more than others during blending?

    Absolutely! You can implement weighted averaging setups by adjusting specific picture contributions before summation steps accordingly.


    In conclusion, we have explored how Pygame offers creative solutions… to merge multiple source imagery through calculated averages…

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