"""
create_chin_image.py

open_mouth.pyの一部

口のオープンに合わせて、あご画像を縦に拡大しているだけ、

輪郭はもう少し綺麗に取りたい
https://github.com/akjava/lip_recognition_tools/issues/7

著者: Akihito Miyazaki
作成日: 2024-04-23
更新履歴:
  - 2024-04-23: 最初のリリース

"""

import cv2
import numpy as np
from PIL import Image
import lip_utils

def process_chin_image(img,landmarks_list, margin, open_size_y, open_size_x):
    img_h, img_w = lip_utils.get_image_size(img)


    open_size_x = 0 #stop support this
    if open_size_x > 0:
        print("currently stop support open-sizex")

    jaw_points = lip_utils.get_jaw_points(landmarks_list)
    print("### JAW POINT")
    print(jaw_points)

    box = lip_utils.points_to_box(jaw_points)
    print(box)

    cropped = lip_utils.crop_image_by_box(img,box)
    cropped_img_h, cropped_img_w = lip_utils.get_image_size(cropped)
    if lip_utils.DEBUG_CHIN:
      cv2.imwrite("chin_cropped.jpg",cropped)
    cropped_jaw_points = lip_utils.offset_points(jaw_points,box[0])
    #what hell is this?
    #points = np.array(jaw_points,dtype=np.float32)
    # 回転矩形を取得
    #rect = cv2.minAreaRect(points)
    #print(rect)

    mask = lip_utils.create_mask_from_points(cropped,cropped_jaw_points,4,2)
    if lip_utils.DEBUG_CHIN:
       cv2.imwrite("chin_mask.jpg",mask)

    #lip_utils.print_numpy(mask)
    chin_image = lip_utils.apply_mask(cropped,mask)
    chin_image_resized = cv2.resize(chin_image, (cropped_img_w, cropped_img_h+open_size_y), interpolation=cv2.INTER_LANCZOS4)
    #chin_mask_image_resized = cv2.resize(mask, (cropped_img_w, cropped_img_h+open_size_y), interpolation=cv2.INTER_LANCZOS4)

    #lip_utils.print_numpy(chin_image)
    if lip_utils.DEBUG_CHIN:
       cv2.imwrite("chin_resized.png",chin_image_resized) #alpha image must be save png 

    full_rgba=lip_utils.create_rgba(img_w,img_h)
    lip_utils.copy_image(full_rgba,chin_image_resized,box[0][0],box[0][1])
    if lip_utils.DEBUG_CHIN:
       cv2.imwrite("chin_full.png",full_rgba)

    #mask_gray=lip_utils.create_gray(img_w,img_h)
    #lip_utils.copy_image(mask_gray,chin_mask_image_resized,box[0][0],box[0][1])
    # chin mask is useless
    
    return full_rgba

if __name__ == "__main__":
  # 画像ファイルのパス
  img_path = "straight.jpg"
  img = cv2.imread(img_path)
  img_h, img_w = lip_utils.get_image_size(img)
  landmarks_list = lip_utils.image_to_landmarks_list(img)

  # パラメータ
  margin = 4
  open_size_y = 20
  open_size_x = 0

  # 関数の呼び出し
  process_chin_image(img,landmarks_list, margin, open_size_y, open_size_x)