Abstract: A method and system for calibrating a digital imaging apparatus by placing an object of known dimensions in a camera field of view, creating a digital image of the object, measuring the object dimensions in the digital image, creating a mathematical relationship between the object dimensions and the measured object dimensions in the digital image, creating n additional digital images each image having a distinct camera zoom level; measuring the position of a plurality of locations on the object for the n additional images, calculating a value for said locations in the n additional digital images, linking corresponding locations in the n additional images to create a calibration metric for a plurality of zoom values and calibrating any lens by comparing the zoom position of the lens in a camera with the calibration value. The present invention reduces calibration time and generates images which can be quickly verified by the operator.

Abstract: The invention provides an integrated digital microscope system comprising a camera, a lens and a screen to view an object characterised in that an integrated circuit comprises a video buffer write block, a grid generator block, and a video buffer read block configured to correct lens distortion errors in an image appearing on said screen. The invention also provides an integrated digital microscope system configured to remove chromatic distortion errors.