Hand_Gesture_controlled_ppt_presentation (#263)

Add Hand Gesture controlled PPT presentation

Author: atul120212

Hand_Gesture_controlled_ppt_presentation/Presentation/1.png

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+# Hand_Gesture_controlled_ppt_presentation

Hand_Gesture_controlled_ppt_presentation/Presentation/2.png

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+import os
+from cvzone.HandTrackingModule import HandDetector
+import cv2
+import numpy as np
+
+
+width, height = 1280, 720
+folderPath = "Presentation"
+#camera
+cap = cv2.VideoCapture(0)
+cap.set(3,width)
+cap.set(4,height)
+#get list of slides
+pathImages = sorted(os.listdir(folderPath), key=len)
+print(pathImages)
+#var
+imgNum = 0
+hs,ws = int(120*1.2), int(213*1)
+gestureThreshold = 300
+btnpressed = False
+btncounter = 0
+btnDelay = 30
+annot =[]
+
+#hand detector
+detector = HandDetector(detectionCon=0.8,maxHands=1)
+while True:
+    #import images
+
+    success, img = cap.read()
+    img = cv2.flip(img, 1)
+    pathFullImage = os.path.join(folderPath, pathImages[imgNum])
+    imgCurent = cv2.imread(pathFullImage)
+
+    hands, img = detector.findHands(img)#, flipType=False
+    cv2.line(img,(0, gestureThreshold),(width, gestureThreshold),(0,255,0),10)
+
+    if hands and btnpressed is False:
+        hand = hands[0]
+        fingers =detector.fingersUp(hand)
+        cx, cy = hand['center']
+        lmList = hand['lmList']
+
+        #contrain values for drawing
+        xVal = int(np.interp(lmList[8][0],[width//2,w], [0, width]))
+        yVal = int(np.interp(lmList[8][1], [150, height-150], [0, height]))
+        indexfinger = xVal,yVal
+
+        #print(fingers)
+        if cy <= gestureThreshold: #if hand is at the height of the face
+            #gest 1 -left
+            if fingers == [1,0,0,0,0]:
+
+                if imgNum>0:
+                    btnpressed = True
+                    imgNum -= 1
+                    print('left')
+            elif fingers == [0, 0, 0, 0, 1]:
+
+                if imgNum < len(pathImages)-1:
+                    btnpressed = True
+                    print('right')
+                    imgNum += 1
+            elif fingers == [0, 1, 0, 0, 0]:
+                print('point')
+        if fingers == [0, 1, 1, 0, 0]:
+            cv2.circle(imgCurent, indexfinger, 12, (0, 0, 255), cv2.FILLED)
+            annot.append(indexfinger)
+            print('draw')
+
+    #btnpressed iteration
+    if btnpressed:
+        btncounter += 1
+        if btncounter > btnDelay:
+            btncounter = 0
+            btnpressed = False
+
+    for i in range(len(annot)):
+        if i!=0:
+            cv2.line(imgCurent,annot[i-1], annot[i],(0,0,200),12)
+    #add webcam image on the slides
+    imgSmall = cv2.resize(img, (ws,hs))
+    h,w, _ = imgCurent.shape
+    imgCurent[0:hs, w-ws:w] = imgSmall
+
+    cv2.imshow("Image", img)
+    cv2.imshow("Slide",imgCurent)
+    key = cv2.waitKey(1)
+    if key == ord('q'):
+        break