An image processing apparatus and method, and an electronic device are provided. The image processing apparatus includes: an analyzer configured to calculate color characteristics by input pixel data,and determine whether the pixel data is achromatic based on the color characteristics; a first renderer configured to perform a first rendering on the pixel data in response to determining that the pixel data is not achromatic; and a second renderer configured to perform a second rendering on the pixel data in response to determining that the pixel data is achromatic.