class handDetector():
def __init__(self, mode False, maxHands 2, detectionCon 0.5, trackCon 0.5):
self.mode mode
self.maxHands maxHands
self.detectionCon detectionCon
self.trackCon trackCon
self.mpHands mp.solutions.hands
self.hands self.mpHands.Hands(self.mode, self.maxHands,
self.detectionCon, self.trackCon)
self.mpDraw mp.solutions.drawing_utils
def findHands(self, img, draw True):
imgRGB cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
self.results self.hands.process(imgRGB)
# print(results.multi_hand_landmarks)
if self.results.multi_hand_landmarks:
for handLms in self.results.multi_hand_landmarks:
if draw:
self.mpDraw.draw_landmarks(img, handLms,
self.mpHands.HAND_CONNECTIONS)
return img
def findPosition(self, img, handNo 0, draw True):
lmList []
if self.results.multi_hand_landmarks:
myHand self.results.multi_hand_landmarks[handNo]
for id, lm in enumerate(myHand.landmark):
# print(id, lm)
h, w, c img.shape
cx, cy int(lm.x * w), int(lm.y * h)
# print(id, cx, cy)
lmList.append([id, cx, cy])
# if draw: 这部分代码画出了手上所有结点 因为比较难看 就注释掉了。
# cv2.circle(img, (cx, cy), 15, (255, 0, 255), cv2.FILLED)
return lmList
