User manual

Phantom Camera Control Application - Help 97

to a fixed variable, such as capturing outdoors where clouds may change the light

conditions. The system will adjust the Exposure using the information from the defined area.

The defined pixel area should be the focus of interest or the area of interest, in other words,

the subject matter.

NOTE

The Auto Exposure feature cannot be used in conjunction with the EDR, (Extreme Dynamic

Range), feature and should not be enabled while performing a CSR, (Current Session

Reference), or Black Reference calibration adjustment.

For a brief explanation of Black Reference, see: Functional Descriptions>Black Reference/

Current Session Reference Adjustments.

Level

Level defines the average gray scale level for the specified area, to be realized by the

automatic exposure system. For example, for an 8-bit pixel image depth a mid gray: 128.

Rectangle

Rectangle defines the region of interest where the auto-exposure measures the average

pixel level. The larger the area the slower the process becomes.

The Rectangle, or region of interest to be auto exposed, is defined by entering the following

parameters:

Top

Specifies the y-coordinate of the top row of pixels.

Left

Specifies the x-coordinates of the left column pixels.

Right

Specifies the x-coordinates of the right column pixels.

Bottom

Specifies the y-coordinate of the bottom row of pixels.

Show On Image Enable Box

When enabled, (checked), a red box, indicating the region of interest where the auto-

exposure measures the average pixel level, will be displayed over the area specified by

the end-use in the Preview Panel, and will not be recorded with the image data.

Full Button

When enabled, (checked), instructs the software to auto expose the entire image area.

TECH TIP

A user-friendly technique as been incorporated into the Phantom Camera Control Software

to define the Rectangle. Simply, identify the area of interest in the Live Preview Panel and

place a box around the area of interest. This can be accomplished by placing the cursor just

above the upper left hand corner of the area of interest, the hold down the left mouse key

and drag the cursor just below the lower-right-hand corner of the area of interest, (the

subject matter to be auto-exposed), and release the mouse key. The Rectangle parameters

will automatically be changed to the pixel area selected.

Frame Rate Profile Selector