1. A hair-removing system comprising: a first image sensor configured to scan skin in at least a first scanning direction and detect a two-dimensional image of the skin to be treated; a second image sensor configured to scan a part of the skin in at least a second scanning direction making a non-zero angle with the image and provide hair position information; a control unit coupled to the first and second image sensors configured to discern in the image of the skin, the part of the skin having the hair and the hair position information; and a hair-removing device operatively coupled to the control unit and the first image sensor.