Day: March 15, 2024

red to blue:

from PIL import Image
import colorsys

def rgb_to_hsv(r, g, b):
    # Convert RGB values to HSV
    h, s, v = colorsys.rgb_to_hsv(r / 255.0, g / 255.0, b / 255.0)
    return h, s, v

def hsv_to_rgb(h, s, v):
    # Convert HSV values to RGB
    r, g, b = colorsys.hsv_to_rgb(h, s, v)
    return int(r * 255), int(g * 255), int(b * 255)

def change_red_to_blue(image_path, output_path):
    # Open the image
    img = Image.open(image_path)

    # Convert the image to RGB mode (if it's not already)
    img = img.convert("RGB")

    # Get the width and height of the image
    width, height = img.size

    # Iterate through each pixel in the image
    for x in range(width):
        for y in range(height):
            # Get the RGB values of the pixel
            r, g, b = img.getpixel((x, y))

            # Convert RGB to HSV
            h, s, v = rgb_to_hsv(r, g, b)

            # Check if the pixel is red (adjust the threshold as needed)
            if (h < 0.05 or h > 0.95) and s > 0.5 and v > 0.5:
                # Change the pixel color to blue
                img.putpixel((x, y), (0, 0, 255))

    # Save the modified image
    img.save(output_path)
    
    # Close the image file
    img.close()

if __name__ == "__main__":
    # Specify the input and output file paths
    input_image_path = "prima_up_blue_down_red.png"
    output_image_path = "blue_version.png"

    try:
        # Change red to blue
        change_red_to_blue(input_image_path, output_image_path)
        print("Output image saved successfully.")
    except Exception as e:
        print("An error occurred while saving the output image:", e)

green to red:

from PIL import Image
import colorsys

def rgb_to_hsv(r, g, b):
# Convert RGB values to HSV
    h, s, v = colorsys.rgb_to_hsv(r / 255.0, g / 255.0, b / 255.0)
    return h, s, v

def hsv_to_rgb(h, s, v):
# Convert HSV values to RGB
    r, g, b = colorsys.hsv_to_rgb(h, s, v)
    return int(r * 255), int(g * 255), int(b * 255)

def change_red_to_blue(image_path, output_path):
# Open the image
    img = Image.open(image_path)

# Convert the image to RGB mode (if it's not already)
    img = img.convert("RGB")

# Get the width and height of the image
    width, height = img.size

# Iterate through each pixel in the image
    for x in range(width):
        for y in range(height):
        # Get the RGB values of the pixel
            r, g, b = img.getpixel((x, y))

        # Convert RGB to HSV
            h, s, v = rgb_to_hsv(r, g, b)

        # Check if the pixel is green (adjust the threshold as needed)
            if (h > 0.2 and h < 0.4) and (s > 0.3 and s < 0.7) and (v > 0.3 and v < 0.7):
            # Change the pixel color to red
                img.putpixel((x, y), (255, 0, 0))

# Save the modified image
    img.save(output_path)

# Close the image file
    img.close()
if __name__ == "__main__":
    # Specify the input and output file paths
    input_image_path = "red_to_blue_version.png"
    output_image_path = "green_to_red_version.png"

    try:
        # Change red to blue
        change_red_to_blue(input_image_path, output_image_path)
        print("Output image saved successfully.")
    except Exception as e:
        print("An error occurred while saving the output image:", e)