Document r.camera.capture function

This function is only available on 2022.1.0 and later versions of the kit software.

Author: trickeydan

programming/sr/vision/index.md

@@ -71,6 +71,24 @@ R = Robot()
 marker_ids = R.camera.save(R.usbkey / "initial-view.png")
 ~~~~~
 
+capture
+:   Take a photo through the webcam, and return the image data as an OpenCV array.
+
+<div class="info">
+This feature is only available on version 2022.1.0 or later of the kit.
+</div>
+
+~~~~~ python
+import cv2
+from sr.robot3 import *
+R = Robot()
+
+frame = R.camera.capture()
+
+# Flip the image with OpenCV
+flipped = cv2.flip(frame, 0)
+~~~~~
+
 [Field of View](#fov) {#fov}
 -------------------