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| import cv2 | |
| import mediapipe as mp | |
| import numpy as np | |
| from mediapipe.framework.formats import landmark_pb2 | |
| class FaceMeshVisualizer: | |
| def __init__(self, forehead_edge=False): | |
| self.mp_drawing = mp.solutions.drawing_utils | |
| mp_face_mesh = mp.solutions.face_mesh | |
| self.mp_face_mesh = mp_face_mesh | |
| self.forehead_edge = forehead_edge | |
| DrawingSpec = mp.solutions.drawing_styles.DrawingSpec | |
| f_thick = 2 | |
| f_rad = 1 | |
| right_iris_draw = DrawingSpec(color=(10, 200, 250), thickness=f_thick, circle_radius=f_rad) | |
| right_eye_draw = DrawingSpec(color=(10, 200, 180), thickness=f_thick, circle_radius=f_rad) | |
| right_eyebrow_draw = DrawingSpec(color=(10, 220, 180), thickness=f_thick, circle_radius=f_rad) | |
| left_iris_draw = DrawingSpec(color=(250, 200, 10), thickness=f_thick, circle_radius=f_rad) | |
| left_eye_draw = DrawingSpec(color=(180, 200, 10), thickness=f_thick, circle_radius=f_rad) | |
| left_eyebrow_draw = DrawingSpec(color=(180, 220, 10), thickness=f_thick, circle_radius=f_rad) | |
| head_draw = DrawingSpec(color=(10, 200, 10), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_obl = DrawingSpec(color=(10, 180, 20), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_obr = DrawingSpec(color=(20, 10, 180), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_ibl = DrawingSpec(color=(100, 100, 30), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_ibr = DrawingSpec(color=(100, 150, 50), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_otl = DrawingSpec(color=(20, 80, 100), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_otr = DrawingSpec(color=(80, 100, 20), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_itl = DrawingSpec(color=(120, 100, 200), thickness=f_thick, circle_radius=f_rad) | |
| mouth_draw_itr = DrawingSpec(color=(150 ,120, 100), thickness=f_thick, circle_radius=f_rad) | |
| FACEMESH_LIPS_OUTER_BOTTOM_LEFT = [(61,146),(146,91),(91,181),(181,84),(84,17)] | |
| FACEMESH_LIPS_OUTER_BOTTOM_RIGHT = [(17,314),(314,405),(405,321),(321,375),(375,291)] | |
| FACEMESH_LIPS_INNER_BOTTOM_LEFT = [(78,95),(95,88),(88,178),(178,87),(87,14)] | |
| FACEMESH_LIPS_INNER_BOTTOM_RIGHT = [(14,317),(317,402),(402,318),(318,324),(324,308)] | |
| FACEMESH_LIPS_OUTER_TOP_LEFT = [(61,185),(185,40),(40,39),(39,37),(37,0)] | |
| FACEMESH_LIPS_OUTER_TOP_RIGHT = [(0,267),(267,269),(269,270),(270,409),(409,291)] | |
| FACEMESH_LIPS_INNER_TOP_LEFT = [(78,191),(191,80),(80,81),(81,82),(82,13)] | |
| FACEMESH_LIPS_INNER_TOP_RIGHT = [(13,312),(312,311),(311,310),(310,415),(415,308)] | |
| FACEMESH_CUSTOM_FACE_OVAL = [(176, 149), (150, 136), (356, 454), (58, 132), (152, 148), (361, 288), (251, 389), (132, 93), (389, 356), (400, 377), (136, 172), (377, 152), (323, 361), (172, 58), (454, 323), (365, 379), (379, 378), (148, 176), (93, 234), (397, 365), (149, 150), (288, 397), (234, 127), (378, 400), (127, 162), (162, 21)] | |
| # mp_face_mesh.FACEMESH_CONTOURS has all the items we care about. | |
| face_connection_spec = {} | |
| if self.forehead_edge: | |
| for edge in mp_face_mesh.FACEMESH_FACE_OVAL: | |
| face_connection_spec[edge] = head_draw | |
| else: | |
| for edge in FACEMESH_CUSTOM_FACE_OVAL: | |
| face_connection_spec[edge] = head_draw | |
| for edge in mp_face_mesh.FACEMESH_LEFT_EYE: | |
| face_connection_spec[edge] = left_eye_draw | |
| for edge in mp_face_mesh.FACEMESH_LEFT_EYEBROW: | |
| face_connection_spec[edge] = left_eyebrow_draw | |
| # for edge in mp_face_mesh.FACEMESH_LEFT_IRIS: | |
| # face_connection_spec[edge] = left_iris_draw | |
| for edge in mp_face_mesh.FACEMESH_RIGHT_EYE: | |
| face_connection_spec[edge] = right_eye_draw | |
| for edge in mp_face_mesh.FACEMESH_RIGHT_EYEBROW: | |
| face_connection_spec[edge] = right_eyebrow_draw | |
| # for edge in mp_face_mesh.FACEMESH_RIGHT_IRIS: | |
| # face_connection_spec[edge] = right_iris_draw | |
| # for edge in mp_face_mesh.FACEMESH_LIPS: | |
| # face_connection_spec[edge] = mouth_draw | |
| for edge in FACEMESH_LIPS_OUTER_BOTTOM_LEFT: | |
| face_connection_spec[edge] = mouth_draw_obl | |
| for edge in FACEMESH_LIPS_OUTER_BOTTOM_RIGHT: | |
| face_connection_spec[edge] = mouth_draw_obr | |
| for edge in FACEMESH_LIPS_INNER_BOTTOM_LEFT: | |
| face_connection_spec[edge] = mouth_draw_ibl | |
| for edge in FACEMESH_LIPS_INNER_BOTTOM_RIGHT: | |
| face_connection_spec[edge] = mouth_draw_ibr | |
| for edge in FACEMESH_LIPS_OUTER_TOP_LEFT: | |
| face_connection_spec[edge] = mouth_draw_otl | |
| for edge in FACEMESH_LIPS_OUTER_TOP_RIGHT: | |
| face_connection_spec[edge] = mouth_draw_otr | |
| for edge in FACEMESH_LIPS_INNER_TOP_LEFT: | |
| face_connection_spec[edge] = mouth_draw_itl | |
| for edge in FACEMESH_LIPS_INNER_TOP_RIGHT: | |
| face_connection_spec[edge] = mouth_draw_itr | |
| iris_landmark_spec = {468: right_iris_draw, 473: left_iris_draw} | |
| self.face_connection_spec = face_connection_spec | |
| def draw_pupils(self, image, landmark_list, drawing_spec, halfwidth: int = 2): | |
| """We have a custom function to draw the pupils because the mp.draw_landmarks method requires a parameter for all | |
| landmarks. Until our PR is merged into mediapipe, we need this separate method.""" | |
| if len(image.shape) != 3: | |
| raise ValueError("Input image must be H,W,C.") | |
| image_rows, image_cols, image_channels = image.shape | |
| if image_channels != 3: # BGR channels | |
| raise ValueError('Input image must contain three channel bgr data.') | |
| for idx, landmark in enumerate(landmark_list.landmark): | |
| if ( | |
| (landmark.HasField('visibility') and landmark.visibility < 0.9) or | |
| (landmark.HasField('presence') and landmark.presence < 0.5) | |
| ): | |
| continue | |
| if landmark.x >= 1.0 or landmark.x < 0 or landmark.y >= 1.0 or landmark.y < 0: | |
| continue | |
| image_x = int(image_cols*landmark.x) | |
| image_y = int(image_rows*landmark.y) | |
| draw_color = None | |
| if isinstance(drawing_spec, Mapping): | |
| if drawing_spec.get(idx) is None: | |
| continue | |
| else: | |
| draw_color = drawing_spec[idx].color | |
| elif isinstance(drawing_spec, DrawingSpec): | |
| draw_color = drawing_spec.color | |
| image[image_y-halfwidth:image_y+halfwidth, image_x-halfwidth:image_x+halfwidth, :] = draw_color | |
| def draw_landmarks(self, image_size, keypoints, normed=False): | |
| ini_size = [512, 512] | |
| image = np.zeros([ini_size[1], ini_size[0], 3], dtype=np.uint8) | |
| new_landmarks = landmark_pb2.NormalizedLandmarkList() | |
| for i in range(keypoints.shape[0]): | |
| landmark = new_landmarks.landmark.add() | |
| if normed: | |
| landmark.x = keypoints[i, 0] | |
| landmark.y = keypoints[i, 1] | |
| else: | |
| landmark.x = keypoints[i, 0] / image_size[0] | |
| landmark.y = keypoints[i, 1] / image_size[1] | |
| landmark.z = 1.0 | |
| self.mp_drawing.draw_landmarks( | |
| image=image, | |
| landmark_list=new_landmarks, | |
| connections=self.face_connection_spec.keys(), | |
| landmark_drawing_spec=None, | |
| connection_drawing_spec=self.face_connection_spec | |
| ) | |
| # draw_pupils(image, face_landmarks, iris_landmark_spec, 2) | |
| image = cv2.resize(image, (image_size[0], image_size[1])) | |
| return image | |