tcc/FlaskAPI/services/image.py

from wand.image import Image

def box_blur_image_separable(image, blurred_image, radius_x, radius_y):
    pixels = image.get_pixels()
    blurred_pixels = blurred_image.get_pixels()

    for pixel in pixels:
        x, y = pixel[0], pixel[1]

        r_total, g_total, b_total = 0, 0, 0
        pixel_count = 0
        for offset_y in range(-radius_y, radius_y + 1):
            for offset_x in range(-radius_x, radius_x + 1):
                new_x = x + offset_x
                new_y = y + offset_y

                if 0 <= new_x < image.width and 0 <= new_y < image.height:
                    pixel_color = pixels[new_y * image.width + new_x]
                    r_total += pixel_color.red
                    g_total += pixel_color.green
                    b_total += pixel_color.blue
                    pixel_count += 1

        blurred_pixel = blurred_pixels[y * image.width + x]
        blurred_pixel.red = int(r_total / pixel_count)
        blurred_pixel.green = int(g_total / pixel_count)
        blurred_pixel.blue = int(b_total / pixel_count)

    return blurred_image

class ImageService:
    def __init__(self):
        pass

    def box_blur_image(self, img, radius):
        with Image(blob=img) as image:
            blurred_image = image.clone()
            image = box_blur_image_separable(image, blurred_image, radius, 0)
            image = box_blur_image_separable(image, blurred_image, 0, radius)
            return image

    def get_simple_image(self):
        with open("./static/small-image.png", "rb") as file:
            return file.read()

    def get_big_image(self):
        with open("./static/big-image.png", "rb") as file:
            return file.read()

    def save_image(self, img):
        with open("image.png", "wb") as file:
            file.write(img)