From 7acf59a7032b1c5c938e9bcde544f8aefcc04ce8 Mon Sep 17 00:00:00 2001
From: Zhaoliang <zhz03@g.ucla.edu>
Date: Mon, 11 Oct 2021 14:29:31 -0700
Subject: [PATCH] upload the acquiring webcam code
---
Code/webcam/acquire_cam.py | 46 ++++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Code/webcam/acquire_cam.py
diff --git a/Code/webcam/acquire_cam.py b/Code/webcam/acquire_cam.py
new file mode 100644
index 0000000..9b001c8
--- /dev/null
+++ b/Code/webcam/acquire_cam.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Sun Oct 10 22:59:21 2021
+
+@author: Zhaoliang
+"""
+
+import cv2
+
+def get_camera_quantity():
+ """Acquire the available camera number"""
+ quantity = 0
+ cap = cv2.VideoCapture() # video streaming
+ index = 0
+ # normally, your laptop won't connect more than 5 camera
+ while index < 5:
+ ret = cap.open(index)
+ if ret:
+ quantity += 1 # available camera number + 1
+ cap.release() # release the camera
+ index += 1 # index+1
+ else:
+ break # once fail to open, there is no more camera
+ return quantity
+
+
+# run the following 2 lines of code first to make sure your connected camera
+# is really available
+
+"""
+q = get_camera_quantity()
+print(q)
+"""
+
+cap = cv2.VideoCapture(2)
+
+while True:
+ ret,frame = cap.read()
+ if not ret:
+ continue
+ k = cv2.waitKey(10)
+ if k== ord('q'):
+ break
+ cv2.imshow("image",frame)
+cap.release()
+cv2.destroyAllWindows()
--
GitLab