SkippingBinning: Difference between revisions
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==Articles describing | ==Articles describing "Binning" (also sometimes refered to as "Pixel Binning")== | ||
http://www.ccd.com/ccd103.html | http://www.ccd.com/ccd103.html | ||
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http://www.ptgrey.com/support/kb/index.asp?a=4&q=163 | http://www.ptgrey.com/support/kb/index.asp?a=4&q=163 | ||
==Binning in Elphel Cameras== | |||
Using Binning you can lower the resolution of an image while using a bigger sensor area as well as achieving higher FPS. | |||
==Binning Modes== | |||
The "normal" Binning mode averages the charges from photosites in the same "bin" thus reducing noise in the image but not altering light sensitivity. | |||
[http://community.elphel.com/pictures/binning/binning_average.jpeg] | |||
There is an alternative mode that sums up the charges and therefore makes the binned pixel more light sensitive. | |||
[http://community.elphel.com/pictures/binning/binning_sum.jpeg] | |||
In the Elphel Camera (since 8.X Software) the different binning modes can be set at http://*cameraIP*/parsedit.php?embed=0.18&SENSOR_REGS32 | |||
The default value is "0x40" which means averaging binning mode. | |||
If you set it to "0x60" you switch to summing binning mode and will get increased light sensitivity. | |||
Using PHP you can access these registers with | |||
echo elphel_get_P_value(SENSOR_REGS + 32); | |||
Revision as of 14:28, 23 November 2009
Articles describing "Binning" (also sometimes refered to as "Pixel Binning")
http://www.ccd.com/ccd103.html
http://www.imagingu.com/articles/binning.html
http://www.ptgrey.com/support/kb/index.asp?a=4&q=163
Binning in Elphel Cameras
Using Binning you can lower the resolution of an image while using a bigger sensor area as well as achieving higher FPS.
Binning Modes
The "normal" Binning mode averages the charges from photosites in the same "bin" thus reducing noise in the image but not altering light sensitivity. [1]
![[1]](http://community.elphel.com/pictures/binning/binning_average.jpeg){kind=link}
There is an alternative mode that sums up the charges and therefore makes the binned pixel more light sensitive. [2]
![[2]](http://community.elphel.com/pictures/binning/binning_sum.jpeg){kind=link}
In the Elphel Camera (since 8.X Software) the different binning modes can be set at http://*cameraIP*/parsedit.php?embed=0.18&SENSOR_REGS32
The default value is "0x40" which means averaging binning mode.
If you set it to "0x60" you switch to summing binning mode and will get increased light sensitivity.
Using PHP you can access these registers with
echo elphel_get_P_value(SENSOR_REGS + 32);