Changes

==Capturing IR images==

==Capturing IR images==

The camera sensor is typically much more sensitive to visible light than it is to near-Infrared. Additionally there may be a IR-cut filter inside the camera assembly that actually cuts of parts of the near-IR spectrum radiation falling on the sensor. Thus, images taken with our custom, IR-pass-Visible-block filter strip will be darker than normal images. Fortunately, the XO-1 camera parameters are controllable by the ''Video for linux-2 (v4l2)'' API, so sugar activities may be designed to tinker with the camera settings. An example of one such activity is [http://people.sugarlabs.org/~anish/XoScope-1.xo XoScope]

The camera sensor is typically much more sensitive to visible light than it is to near-Infrared. Additionally there may be a IR-cut filter inside the camera assembly that actually cuts of parts of the near-IR spectrum radiation falling on the sensor. Thus, images taken with our custom, IR-pass-Visible-block filter strip will be darker than normal images. Fortunately, the XO-1 camera parameters are controllable by the ''Video for linux-2 (v4l2)'' API, so sugar activities may be designed to tinker with the camera settings. An example of one such activity is [http://activities.sugarlabs.org//en-US/sugar/addon/4481/ XoScope]

[[File:Less ir more visible.jpg|thumb|center|400px|Image with no filter strip in front of the camera]]

[[File:Less ir more visible.jpg|thumb|center|400px|Image with no filter strip in front of the camera]]