alliance vision

LabVIEW/IMAQ Vision Driver
for ImperX VCE / VCE-Pro framegrabber.
Windows 9x/NT/2000/XP version


This library contains the LabVIEW / IMAQ Vision driver for ImperX VCE framegrabbers.

Software requirements for this driver:
- Windows 9x/NT/200/XP
- ImperX VCE or VCE-Pro system driver, and video capture essentials software
- LabVIEW 5.x, 6.x, 7.x 
- IMAQ Vision 5,6, or 7

VCE installation

The ImperX software packaged with the board contains the low-level drivers and software necessary to drive your VCE framegrabber. You must install this software package first. Refer to the ImperX installation note for more details. Once the setup of the framegrabber is achieved, you must test your system with the ÒVideo Capture EssentialsÓ utility. If your framegrabber does not work properly with this stand-alone software, please interrupt the installation at this point and contact your ImperX local technical support.


General overview

All VIs dedicated to the ImperX VCE boards are in the " VCE.llb" library. This library is localized in "\user.lib". Selecting "User Libraries\ImperX VCE" in the LabVIEW menu, you will see the following icons:

This set of VI's gives access to basic actions:
- Initialize/Select a board.
- Select a board camera/channel.
- Set/Get informations about the video input signal (interlace mode, signal type, ...).
- Start a single-shot acquisition(Snap).
- Transfer an image from the framegrabber memory to an IMAQ Vision image in snap or grab mode (up to 30 frames/s with the "VCE Pro" model).
- Adjust the video levels (hue, saturation, brightness, contrast, gamma correction).

VCE Demo.vi

This Vi is a simple example of how to use the VCE Vi's for:
- Initialize/setup a board.
- Select the board video levels, and the acquisition parameters.
- Start a single-shot image capture (snap acquisition) and display it with IMAQ Vision.

 

VCE InitBoard.vi

Initializes a VCE board. It returns a "Board index" which is an identifier for the board and should be use with other Vi's like "VCE - CloseBoard.vi" or "VCE - CurrentBoard.vi". You must call this Vi at the beginning of your LabVIEW application, for each VCE board you want to use.


Input connectors:

Error In is a LabVIEW error cluster.

Output connectors:

Board Index is an identifier of the VCE framegrabber.

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE CloseBoard.vi


Disposes a VCE board, given a "Board number". You must call this Vi, at the end of your LabVIEW application, when you no longer need to use the VCE framegrabber.

Input connectors:

Board Number In is the identifier of the VCE Board to close."Board Number" In is the identifier of the VCE Board to close.

Error In is a LabVIEW error cluster.

Output connectors:

Error Out is a LabVIEW error cluster returning the message and the code of the current error.

 

VCE CloseAll.vi

Disposes ALL the previously initialized VCE board. You should call this Vi, at the end of your LabVIEW application, when you no longer need to use the VCE framegrabbers.

Input connectors:

Error In is a LabVIEW error cluster.

Output connectors:

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE CurrentBoard.vi

Set/Get the current VCE board.
- in Set mode this allows you to select the current VCE board to use. After calling this Vi, each consecutive calls to any VCE Vi's will be redirected to the newly selected board (identified by "Board Number").
- in Get mode, this allows you to get the "Board Number" of the current VCE board.

Input connectors:

Board Number In is the index of the current VCE board..

Error in is a LabVIEW cluster error.

Output connectors:

Board Number Out is the index of the current VCE board.

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE AcquireMode.vi

Changes the board acquisition parameters (channel number, signal type, interlace mode, optional rectangle).

Input connectors:

Acquire Mode In is a LabVIEW cluster which contains all the acquisition parameters.

Error in is a LabVIEW cluster error.

Output connectors:

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Get AcquireMode.vi

Returns the current board acquisition parameters (channel number, signal type, interlace mode, optional rectangle).

Input connectors:

Error in is a LabVIEW cluster error.

Output connectors:

Acquire Mode Out returns the curent acquisition parameters.

Video Standard Out returns the current video standard ÒNTSCÓ/ÓPALÓ or ÒNo signalÓ.

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Snap.vi

Acquires a single frame from the VCE board, into an IMAQ Vision image buffer. A "Snap" is the most basic acquisition mode and is appropriate for low-speed or single-shot image capture.

Input connectors:

Image In is the IMAQ Vision image which will receive the captured image from the board.

Error in is a LabVIEW cluster error.

Output connectors:

Image Out returns the captured image from the board.

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Gamma.vi

Changes the gamma correction level of the current VCE board. The parameter gamma must be greater than 0. If gamma is > 1.0, the images become brighter. If gamma is < 1.0, the images become darker.

Input connectors:

Gamma In is the new gamma correction level (Set mode).

Set/Get allows you to choose between Set/Get mode.

Error in is a LabVIEW cluster error.

Output connectors:

Gamma Out returns the current gamma corection level of the board (Get mode).

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Brightness.vi

This function sets/gets the brightness parameter of the VCE board. The brightness parameter can be in the range of minus 128 to 127, 0 = normal.

Input connectors:

Brightness In is the new brightness level (Set mode).

Set/Get allows you to choose between Set/Get mode.

Error in is a LabVIEW cluster error.

Output connectors:

Brightness Out returns the current brightness level of the board (Get mode).

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Contrast.vi

This function sets/gets the contrast parameter of the VCE board. The contrast parameter can be in the range of minus 128 to 127, 0 = normal.

Input connectors:

Contrast In is the new contrast level (Set mode).

Set/Get allows you to choose between Set/Get mode.

Error in is a LabVIEW cluster error.

Output connectors:

Contrast Out returns the current contrast level of the board (Get mode).

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Hue.vi

This function sets/gets the hue parameter of the VCE board. The hue parameter can be in the range of minus 128 to 127, 0 = normal.

Input connectors:

Hue In is the new hue level (Set mode).

Set/Get allows you to choose between Set/Get mode.

Error in is a LabVIEW cluster error.

Output connectors:

Hue Out returns the current hue level of the board (Get mode).

Error Out is a LabVIEW error cluster returning the message and the code of the current error.


VCE Saturation.vi

This function sets/gets the saturation parameter of the VCE board. The saturation parameter can be in the range of minus 128 to 127, 0 = normal.

Input connectors:

Saturation In is the new saturation level (Set mode).

Set/Get allows you to choose between Set/Get mode.

Error in is a LabVIEW cluster error.

Output connectors:

Saturation Out returns the current saturation level of the board (Get mode).

Error Out is a LabVIEW error cluster returning the message and the code of the current error.

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