Grabbing Window
MultiCam channel parameters for window cropping
Parameter |
Value list/range |
Prerequisites |
NOBLACK, MAN |
Camera parameters |
|
[32:Hactive_Px] |
GrabWindow = MAN |
|
[32:Vactive_Ln] |
GrabWindow = MAN |
|
See below |
GrabWindow = MAN |
|
See below |
GrabWindow = MAN |
NOBLACK
When you assign NOBLACK as the definition mode, the grabbing window size is defined by camera parameters Hactive_Px and Vactive_Ln.
MAN
When you assign MAN as the definition mode, the grabbing window size and position is defined by camera parameters WindowX_Px, WindowY_Ln, OffsetX_Px, and OffsetY_Ln. The grabbing window is a single rectangular area of pixels within the Camera Active area.
The largest grabbing window is the camera active area.
The smallest grabbing window width is 32; the smallest grabbing window height is 32.
The WindowX_Px value can be any integer value in range [32:Hactive_Px]. The default value is Hactive_Px.
The WindowY_Ln value can be any integer value in range [32:Vactive_Ln]. The default value is Vactive_Ln.
Offset
The default value of OffsetX_Px is 0. The grabbing window is horizontally centered on the Camera Active Window. The left margin is (Hactive_Px - WindowX_Px) / 2. The right margin is Hactive_Px - WindowX_Px - Left Margin.
When you increase or decrease the OffsetX_Px value, it will move the grabbing window towards the right edge or left edge of the Camera Active Window respectively. The usable range of OffsetX_Px is such that the grabbing window stays within the Camera Active Window boundaries.
The default value of OffsetY_Ln is 0. In that case, the grabbing window is vertically centered on the Camera Active Window. The top margin is (Vactive_Ln - WindowY_Ln)/2. The bottom margin is Vactive_Ln - WindowY_Ln - Top Margin.
When you increase or decrease the OffsetY_Ln value, it will move the grabbing window towards the bottom edge or top edge of the Camera Active Window respectively. The usable range of OffsetY_Ln is such that the grabbing window stays within the Camera Active Window boundaries.