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--- help:common:kamera_matlab_chameleon_en [2014/02/19 13:30]
zimmerk [USB camera Chameleon]
+++ help:common:kamera_matlab_chameleon_en [2014/02/19 13:36]
zimmerk
@@ Line 6: / Line 6: @@
   - Camera can be accessed as follows <code>vid = videoinput('winvideo',1,'Y800_1280x960');</code>
-  - If you need to change capturing parameters (the default setting is fully automatic camera), the following script sets the manual control:: <code>inspect(getselectedsource(vid));</code> or the following command sets a property value: <code>set(getselectedsource(vid), 'PropertyName', 'PropertyValue');</code> If you need to determine the current value of the parameter it is possible to use the command <code>get(getselectedsource(vid), 'PropertyName');</code> Useful information can be obtained by calling <code>propoinfo(getselectedsource(vid), 'PropertyName');</code> **<fc #FF0000>NOTE:</fc>  Most of the parameters influencing the image capturing can be set only when capturing is off (before calling "start(vid)").**
+  - If you need to change capturing parameters (the default setting is fully automatic camera), the following script sets the manual control:: <code>inspect(getselectedsource(vid));</code> or the following command sets a parameter value: <code>set(getselectedsource(vid), 'PropertyName', 'PropertyValue');</code> If you need to determine the current value of the parameter it is possible to use the command <code>get(getselectedsource(vid), 'PropertyName');</code> Useful information can be obtained by calling <code>propoinfo(getselectedsource(vid), 'PropertyName');</code> **<fc #FF0000>NOTE:</fc>  Most of the parameters influencing the image capturing can be set only when capturing is off (before calling "start(vid)").**
   - Capturing of the endless video stream is initiated by the following commands <code>set(vid,'TriggerRepeat',Inf);
 vid.FrameGrabInterval = 1;
 start(vid);</code>
-  - Reading a frame from the buffer is as follows <code>im = getdata(vid,1);</code>
+  - The following command reads one frame from the current buffer <code>im = getdata(vid,1);</code>
   - The camera provides video in RAW format, therefore [[http://en.wikipedia.org/wiki/Bayer_filter|debayering]] is needed. This can be done for example by using the following commands. We could not figure out how to change the white balance for blue channel in the MATLAB environment, therefore blue channel must be multiplied by an appropriate value <code>im_debay(:,:,1) = im(2:2:end,1:2:end);
 im_debay(:,:,2) = im(1:2:end,1:2:end)/2 + im(2:2:end,2:2:end)/2;
 im_debay(:,:,3) = 6.5 * im(1:2:end,2:2:end);</code>
-  - Evetually, you can clear the memory by the following commands <code>stop(vid);
+  - Eventually, you can clear the memory by the following commands <code>stop(vid);
 delete(vid);</code>
 ==== Parameter Settings ====
-As described above, it is possible to set some camera parameters in the MATLAB environment. These parameters influence the image provided by the camera, and they are therefore important for the successful use of the camera. Description of paremeters in the camera documentation is very limited. Therefore, we conducted a limited survey and testing in order to determine the possibility set the capturing parameters.
+As described above, it is possible to set some camera parameters in the MATLAB environment. These parameters influence the image provided by the camera, and they are therefore important for the successful use of the camera. Description of paremeters in the camera documentation is very limited. Therefore, we conducted a limited survey and testing in order to determine the possibility to set the capturing parameters.
 Unfortunately MATLAB interface allows to adjust only a limited number of parameters. The following parameters can be set: