A method 300 and device for visual compensation captures 330 an image using an imager, detects 360 whether eyeglasses are present in the image, and sets 363 an electronic visual display to a larger font size, if eyeglasses are not detected as present in the image. One or more of the following phases may be implemented: skin-color model building, face detecting, exposure level correcting, and contrast enhancing. The exposed metal may be oxidized by using solutions containing oxidizing agents such as peroxides or by using oxidizing gases such as those containing oxygen or ozone. In the capacitor portion for programmingerasing data, rewriting of data is performed by means of an FN tunnel current of an entire channel surface. The quantized current engine power command is set equal to the quantized previous engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is smaller than the threshold. In certain implementations, the second contact members have resilient sections that are identical to each other.