Added camera detection

assignment4/cam.py

@@ -0,0 +1,25 @@
+import cv2
+
+
+def start_realtime_keypoint_detection():
+    cap = cv2.VideoCapture(0)
+    scaling_factor = 1
+
+    while True:
+        ret, frame = cap.read()
+        frame = cv2.resize(frame, None, fx=scaling_factor, fy=scaling_factor, interpolation=cv2.INTER_AREA)
+        imagegray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+        features = cv2.SIFT_create()
+        keypoints = features.detect(imagegray, None)
+        output_image = cv2.drawKeypoints(frame, keypoints, 0, (0, 255, 0),flags=cv2.DRAW_MATCHES_FLAGS_DRAW_RICH_KEYPOINTS)
+
+        cv2.imshow('Webcam', output_image)
+        c = cv2.waitKey(1)
+        if c == 27:
+            break
+
+    cap.release()
+    cv2.destroyAllWindows()
+
+if __name__ == '__main__':
+    start_realtime_keypoint_detection()