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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 21:32, 7 March 2011
, 21:32, 7 March 2011→Brightness
The average brightness of the image is calculated. As at V106, the automatic gain control (AGC) is still functioning. The camera tries to correct the image brightness to a standard brightness, then calculates the average brightness. The result is a non linear relationship between actual and the measured brightness. Also, some parts of the image are brighter than others further complicating things. Using a diffuser, e.g. translucent material like a plastic bag, may help.
The average brightness of the image is calculated. As at V106, the automatic gain control (AGC) is still functioning. The camera tries to correct the image brightness to a standard brightness, then calculates the average brightness. The result is a non linear relationship between actual and the measured brightness. Also, some parts of the image are brighter than others further complicating things. Using a diffuser, e.g. translucent material like a plastic bag, may help.
[[File:Brightness.jpg]]
===Wildlife Photography===
===Wildlife Photography===