第opencv+mediapipe實(shí)現(xiàn)人臉檢測(cè)及攝像頭實(shí)時(shí)示例ifresults.multi_face_landmarks:#如果檢測(cè)出人臉

forface_landmarksinresults.multi_face_landmarks:#遍歷每一張臉

#繪制人臉網(wǎng)格

mp_drawing.draw_landmarks(

image=annotated_image,

landmark_list=face_landmarks,

connections=mp_face_mesh.FACEMESH_TESSELATION,

#landmark_drawing_spec為關(guān)鍵點(diǎn)可視化樣式，None為默認(rèn)樣式（不顯示關(guān)鍵點(diǎn)）

#landmark_drawing_spec=mp_drawing_styles.DrawingSpec(thickness=1,circle_radius=2,color=[66,77,229]),

landmark_drawing_spec=None,

connection_drawing_spec=mp_drawing_styles.get_default_face_mesh_tesselation_style()

#繪制人臉輪廓、眼睫毛、眼眶、嘴唇

mp_drawing.draw_landmarks(

image=annotated_image,

landmark_list=face_landmarks,

connections=mp_face_mesh.FACEMESH_CONTOURS,

#landmark_drawing_spec為關(guān)鍵點(diǎn)可視化樣式，None為默認(rèn)樣式（不顯示關(guān)鍵點(diǎn)）

#landmark_drawing_spec=mp_drawing_styles.DrawingSpec(thickness=1,circle_radius=2,color=[66,77,229]),

landmark_drawing_spec=None,

connection_drawing_spec=mp_drawing_styles.get_default_face_mesh_tesselation_style()

#繪制瞳孔區(qū)域

mp_drawing.draw_landmarks(

image=annotated_image,

landmark_list=face_landmarks,

connections=mp_face_mesh.FACEMESH_IRISES,

#landmark_drawing_spec為關(guān)鍵點(diǎn)可視化樣式，None為默認(rèn)樣式（不顯示關(guān)鍵點(diǎn)）

landmark_drawing_spec=mp_drawing_styles.DrawingSpec(thickness=1,circle_radius=2,color=[128,256,229]),

#landmark_drawing_spec=None,

connection_drawing_spec=mp_drawing_styles.get_default_face_mesh_tesselation_style()

cv.imwrite('test.jpg',annotated_image)

look_img(annotated_image)

#在三維坐標(biāo)中分別可視化人臉網(wǎng)格、輪廓、瞳孔

mp_drawing.plot_landmarks(results.multi_face_landmarks[0],mp_face_mesh.FACEMESH_TESSELATION)

mp_drawing.plot_landmarks(results.multi_face_landmarks[0],mp_face_mesh.FACEMESH_CONTOURS)

mp_drawing.plot_landmarks(results.multi_face_landmarks[0],mp_face_mesh.FACEMESH_IRISES)

單張圖像人臉檢測(cè)

可以通過調(diào)用open3d實(shí)現(xiàn)3d模型建立，部分代碼與上面類似

importcv2ascv

importmediapipeasmp

importnumpyasnp

fromtqdmimporttqdm

importtime

importmatplotlib.pyplotasplt

#定義可視化圖像函數(shù)

deflook_img(img):

img_RGB=cv.cvtColor(img,cv.COLOR_BGR2RGB)

plt.imshow(img_RGB)

plt.show()

#導(dǎo)入三維人臉關(guān)鍵點(diǎn)檢測(cè)模型

mp_face_mesh=mp.solutions.face_mesh

#help(mp_face_mesh.FaceMesh)

model=mp_face_mesh.FaceMesh(

static_image_mode=True,#TRUE:靜態(tài)圖片/False:攝像頭實(shí)時(shí)讀取

refine_landmarks=True,#使用A