Better hand cropping

crop_hand.py

@@ -3,12 +3,13 @@ from cvzone.HandTrackingModule import HandDetector
 import cv2
 
 
-def crop_hand(img, detector, offset=30):
+def crop_hand(img, detector, offset=50):
     hands, det_img = detector.findHands(img.copy())
+    offset = int((img.shape[0] + img.shape[1]) * 0.1)
     if hands:
         hand = hands[0]
         x, y, w, h = hand['bbox']
-        img_crop = img[y - offset:y + h + offset, x - offset:x + w + offset]
+        img_crop = img[max(0, y - offset):min(y + h + offset, img.shape[0]), max(0, x - offset):min(x + w + offset, img.shape[1])]
         return img_crop
     return img
 
@@ -17,7 +18,7 @@ def main():
     input_path = "test_data"
     output_path = "test_data_cropped"
     dir_list = os.listdir(input_path)
-    detector = HandDetector(maxHands=1)
+    detector = HandDetector(maxHands=1, mode=True, detectionCon=0.7, minTrackCon=0.8)
 
     for sign in dir_list:
         if not os.path.exists(output_path + '/' + sign):