Point Grey Flea3 GigE Technical Reference
8 Flea3 GigE Attributes
To adjust gamma:
n
GenICam—
Analog Control
n
FlyCapture API—
Setting Gamma Using the FlyCapture API
8.14 High Dynamic Range (HDR) Imaging
Generally speaking, digital camera systems are not capable of accurately capturing many of the high dynamic range
scenes that they are exposed to in real world settings. That is, they may not be able to capture features in both the
darkest and brightest areas of an image simultaneously - darker portions of the image are too dark or brighter portions
of the image are too bright. High Dynamic Range (HDR) mode helps to overcome this problem by capturing images with
varying exposure settings. HDR is best suited for stationary applications.
The camera can be set into an HDR mode in which it cycles between 4 user-defined shutter and gain settings, applying
one gain and shutter value pair per frame. This allows images representing a wide range of shutter and gain settings to
be collected in a short time to be combined into a final HDR image later. The camera does not create the final HDR
image; this must be done by the user.
The HDR interface contains gain and shutter controls for 4 consecutive frames. When
Enable high dynamic range
is
checked, the camera cycles between settings 1-4, one set of settings per consecutive frame.
To enable HDR:
n
FlyCapture SDK example program—
HighDynamicRangeEx
8.15 Image Flip/Mirror
The camera supports horizontal image mirroring.
To enable image mirroring use:
n
GenICam—
Image Format Control
8.16 Embedded Image Information
This setting controls the frame-specific information that is embedded into the first several pixels of the image. The first
byte of embedded image data starts at pixel 0,0 (column 0, row 0) and continues in the first row of the image data: (1,0),
(2,0), and so forth. Users using color cameras that perform Bayer color processing on the computer must extract the
value from the non-color processed image in order for the data to be valid.
Embedded image values are those in effect at the end of shutter integration.
Each piece of information takes up 32-bits (4 bytes) of the image. When the camera is using an 8- bit pixel format , this is
4 pixels worth of data.
Revised 10/29/2013
Copyright ©2010-2013 Point Grey Research Inc.
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