1. A system for processing pixel signals to generate an image, comprising an image sensor for detecting an image and generating a plurality of pixel signals representative of pixels comprising the detected image, a level detector for measuring an amplitude of a respective pixel signal, an amplifier for amplifying by an amplification amount the respective pixel signal as a function of the amplitude measured for the respective pixel signal to obtain an amplified signal, an analog-to-digital-converter (ADC) to digitize the amplified signal to obtain a digital signal, a digital divider for directly receiving an output of the ADC and for reducing an amplitude of the digital signal by a factor substantially similar to the amplification amount, and a calibration processor for implementing a calibration process to calibrate for a difference between the amplification amount and the factor.