Differences

This shows you the differences between two versions of the page.

--- lirec:firewire_camera_notes [2009-03-24 16:40] – 161.23.251.227
+++ lirec:firewire_camera_notes [2009-05-08 12:55] (current) – davegriffiths
@@ Line 5: / Line 5: @@
   * [[http://www.theimagingsource.com/|Imaging Source]] DFK 31AF03-Z
-===Howto===
+===Getting it working===
   * After plugging the camera in, you may need to do:
@@ Line 34: / Line 34: @@
   - In Trigger you should be able to select 30fps
-You can also get OpenCV to read from this mode, but it will get the raw image directly. This is where we might need a debayer algorithm. The caminfo for OpenCV I used for the raw image was as follows (I think Marek has a better way):
+You can also get OpenCV to read from this mode, but it will get the raw image directly.
+===Getting the camera working with OpenCV===
+The caminfo for OpenCV I used for the raw image was as follows (I think Marek has a better way):
 <code>
@@ Line 54: / Line 58: @@
 };
 </code>
+===Using OpenCV for the debayering===
+OpenCV has a built in debayering algorithm, as part of it's colour space conversions. The one which works with the lirec camera is:
+<code>cvCvtColor(bayerimage, rgbimage, CV_BayerGB2RGB);</code>
+Where the input is a 1 channel image and the output is 3 channel RGB image.
+==The bayer pattern image, raw data from the camera CCD==
+{{:lirec:bayerpattern.png|}}
+==Converted to RGB==
+{{:lirec:bayerrgb.png|}}