Camera Attributes Tab

NI-IMAQ for IEEE 1394 Cameras

Camera Attributes Tab

View and modify camera attributes from the Camera Attributes tab. Select a feature, and use the slider or textbox to view and modify the attribute value.

Use Auto to allow the camera to always control a feature.

Use One Push to allow the camera to control a feature once and then return to the manual control state with adjusted values.

Use Off to disable the selected feature.

Use Manual (Absolute) to set the selected feature to use 32-bit floating-point numbers that map to real-world units.

Use Manual (Relative) to set the selected feature to use 12-bit integers that do not map to real-world units.

Use Ignore to prevent the driver from writing any values for the selected feature to the camera.

The feature set of the camera is defined by the manufacturer and can include the following features:

  • Auto-Exposure performs a single acquisition and calculates the optimum white and black reference levels based on the dynamic range of the image.
  • Brightness adjusts the black level of the acquired image.
  • Focus controls the lens focus for the camera.
  • Gain controls the intensity of the image.
  • Gamma adjusts the gamma of an acquired image. Gamma is a nonlinear change in the difference between the video signal brightness level and the voltage level needed to produce that brightness.
  • Hue adjusts the color phase of the acquired image.
  • Iris controls the iris of a mechanical lens. Adjust this value to increase or decrease the amount of light that passes through the camera lens.
  • Optical Filter changes the optical filter of the camera lens function.
  • Pan controls the horizontal movement of the camera.
  • Saturation adjusts the richness of the color. A saturation of zero corresponds to no color, or a gray pixel. For example, pink is red with low saturation.
  • Sharpness adjusts the sharpness of the picture. Increasing sharpness produces better-defined edges in the image.
  • Shutter Speed adjusts the integration time of the camera sensor. Integration time is the duration per frame that the sensor is exposed to light.
  • Temperature gets the temperature inside the camera or controls the temperature.
  • Tilt controls the vertical movement of the camera.
  • White Balance adjusts the white color of the image along the U (blue) and V (red) color planes.
  • Zoom controls the lens magnification for cameras with a motorized lens.
  • Trigger Delay sets the delay between the incoming external trigger and the start of frame exposure.
  • White Shading Compensation adjusts the white shading compensation.
  • Frame Rate Prioritize sets the frame rate priority within the current video mode. This attribute corresponds to an absolute value in frames/s.

Reset to Defaults resets all camera attributes to the manufacturer default values.