1. A computer-implemented method, comprising: performing, by a processor circuit, a first feature detection iteration for a graphics information element using a first integral pixel value array calculated from a pixel value array that corresponds to the graphics information element; determining a scaling factor; calculating a second integral pixel value array from the first integral pixel value array by: dividing integral pixel values of the first integral pixel value array by the scaling factor; or multiplying the integral pixel values of the first integral pixel value array by the scaling factor; performing a second feature detection iteration for the graphics information element using the second integral pixel value array; and transmitting an output derived from the second integral pixel value array to a display or by a transceiver coupled to the processor circuit onto a network.