Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions
Tonyforster (talk | contribs) |
Tonyforster (talk | contribs) |
||
| Line 546: | Line 546: | ||
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=== | ||