1. A mobile device for measuring image quality parameters, said mobile device comprising: a digital camera configured to capture one or a plurality of images; a processor configured to select one or a plurality of pairs of points from each image of the one or plurality of images, each pair of points connectable by a line, compute one or a plurality of image quality parameters from at least one of the lines, and compute a representative image quality parameter from the image quality parameters; and, an output unit configured to communicate one or a plurality of representative image quality parameters.