hue_rotation.py

from PIL import Image
import os
import colorsys
 
def hue_rotation(image_path, output_path, degrees):
    image = Image.open(image_path)
    image = image.convert("RGB")
    pixels = image.load()
    width, height = image.size
 
    # Iterate over each pixel and rotate its hue
    for x in range(width):
        for y in range(height):
            r, g, b = pixels[x, y]
            h, s, v = colorsys.rgb_to_hsv(r / 255.0, g / 255.0, b / 255.0)
            h = (h + degrees / 360.0) % 1.0
            r, g, b = colorsys.hsv_to_rgb(h, s, v)
            pixels[x, y] = (int(r * 255), int(g * 255), int(b * 255))
 
    image.save(output_path)
 
def rotate_images_in_directory(directory, degrees):
    output_directory = './output-' +  str(degrees)
    for filename in os.listdir(directory):
        if filename.endswith(".jpg") or filename.endswith(".png"):
            if not os.path.exists(output_directory):
                print("Creating directory: " + output_directory)
                os.makedirs(output_directory)
            image_path = os.path.join(directory, filename)
            output_path = os.path.join(output_directory, filename)
            hue_rotation(image_path, output_path, degrees)
 
directory = "./input"
output_directory = "./output"
degrees =  20
 
while degrees < 360:
    rotate_images_in_directory(directory, degrees)
    degrees += 20