Function opencv::highgui::select_rois

pub fn select_rois(
    window_name: &str, 
    img: &dyn ToInputArray, 
    bounding_boxes: &mut VectorOfRect, 
    show_crosshair: bool, 
    from_center: bool
) -> Result<()>

Selects ROIs on the given image. Function creates a window and allows user to select a ROIs using mouse. Controls: use space or enter to finish current selection and start a new one, use esc to terminate multiple ROI selection process.

Parameters

• windowName: name of the window where selection process will be shown.
• img: image to select a ROI.
• boundingBoxes: selected ROIs.
• showCrosshair: if true crosshair of selection rectangle will be shown.
• fromCenter: if true center of selection will match initial mouse position. In opposite case a corner of selection rectangle will correspont to the initial mouse position.

Note: The function sets it's own mouse callback for specified window using cv::setMouseCallback(windowName, ...). After finish of work an empty callback will be set for the used window.

C++ default parameters

• show_crosshair: true
• from_center: false