Why do I get an error referring to 'HImrect' when starting IMAQTOOL in Image Acquisition Toolbox 3.2 (R2008b)?

When starting the Image Acquisition Tool with the IMAQTOOL command, the following error message appears:

ERROR: ??? The property 'HImrect' in class 'iatbrowser.ROIRect' cannot be set to its initial value.
Undefined variable "imrect" or class "imrect.empty".

Error in ==> ROIRect>ROIRect.ROIRect at 45
    function obj = ROIRect (hFigure, hAxis)

Error in ROIGUIElementsController>ROIGUIElementsController.ROIGUIElementsController at 52
    obj.HROIRect = iatbrowser.ROIRect(hFigure, hAxis);

Error in ==> C:\Program Files\MATLAB\2008b\toolbox\imaq\imaq\@iatbrowser\@Browser\initializxe.p>initialize at 44

Error in ==> C:\Program Files\MATLAB\2008b\toolbox\imaq\imaq\@iatbrowser\@Browser\Browser.p>Browser at 16

Error in imaqtool at 26
browser = iatbrowser.Browser

The IMAQTOOL window does appear, and I see my camera listed in the "Hardware Browser" pane, but I am unable to select a device format. The mouse cursor remains as an hourglass, and does not change.

Furthermore, I am unable to close the IMAQTOOL window by clicking on 'x'. I must restart MATLAB in order to close it.

Answer 1

[MathWorks Support Team]

This error may occur when the Image Processing Toolbox is not installed alongside the Image Acquisition Toolbox when using MATLAB 7.7 (R2008b) or later.

Beginning in release R2008b, the Image Processing Toolbox became a required installation for proper operation of the Image Acquisition Toolbox. This is mentioned in the following Image Acquisition Toolbox 3.2 (R2008b) Release Notes page, which lists the necessary steps to ensure that both toolboxes are installed:

・Release Notes: R2008b
http://www.mathworks.com/help/imaq/release-notes.html#R2008b・System Requirements and Platform Availability by Product
https://in.mathworks.com/support/requirements/product-requirements-platform-availability-list.html