Colorblind video adapter

摘要

A colorblind video adapter may include four difference amplifiers. A first difference amplifier may amplify a red signal relative to a green signal to create a red contrast signal, while a second difference amplifier may amplify the green signal relative to the red signal to create a green contrast signal. Outputs from the first two difference amplifiers may be provided to a second two difference amplifiers. The third difference amplifier may sum the red input signal and the red contrast signal to create a red output signal, while the fourth difference amplifier may sum the green input signal and the green contrast signal to create a green output signal.