A method of using a machine-readable code to extract information includes using an image-capture device to capture a digital image of a machine-readable code encoding information wherein the image-capture device is positioned at any of a plurality of angles relative to the machine-readable code; using a processor to extract the information encoded in the machine-readable code; using the processor to analyze the captured digital image of the machine-readable code and calculate the relative positioned angle at which the image-capture device was positioned when the image-capture device captured the digital image of the machine-readable code; and using the processor and the calculated relative positioned angle to determine information.