BlurMe/graphics/image_modification.py

import logging
import os
from typing import List
from PIL import Image, ImageDraw, ImageFont, ImageFilter
from PIL.Image import composite

from ml.element_detection import BoundBox

DIR_PATH = os.path.dirname(os.path.realpath(__file__))


def show_image_with_boxes(
    in_image_path: str, bounding_boxes: List[BoundBox], out_image_path: str = None
):
    img = Image.open(in_image_path)
    draw = ImageDraw.Draw(img)
    font_path = DIR_PATH + "/assets/fonts/arial.ttf"
    font = ImageFont.truetype(font_path, 25)
    for i, box in enumerate(bounding_boxes):
        draw.rectangle(box.get_params(), outline="red", width=2, fill=None)
        draw.text((box.x1 + 5, box.y1 + 5), str(i + 1), fill="red", font=font)
    if not out_image_path:
        out_image_path = (
            in_image_path.split(".")[0] + "_out." + in_image_path.split(".")[1]
        )
    img.save(out_image_path)


def blur_boxes_on_image(
    in_image_path: str, bounding_boxes: List[BoundBox], out_image_path: str = None
):
    img = Image.open(in_image_path)
    blur_img = img.filter(ImageFilter.GaussianBlur(radius=13))  # to increase the blur, increase the radius
    mask = Image.new("L", img.size, 255)
    draw_mask = ImageDraw.Draw(mask)
    for box in bounding_boxes:
        if box.selected:
            if box.object == "plate":
                draw_mask.rectangle(box.get_params(), fill=0)
            elif box.object == "face":
                draw_mask.ellipse(box.get_params(), fill=0)
    mask = mask.filter(ImageFilter.GaussianBlur(radius=3))
    img = composite(img, blur_img, mask)
    if not out_image_path:
        out_image_path = (
            in_image_path.split(".")[0] + "_blurred." + in_image_path.split(".")[1]
        )
    img.save(out_image_path)