Image processing method and apparatus of same are provided. An image processing method includes a first step of processing first image data obtained by capturing an image of a predetermined region including a blood vessel pattern of a biological entity so as to enhance the image corresponding to the blood vessel pattern in the first image data to generate second image data; a second step of processing each pixel data composing the second pixel data generated at the first step to generate index data indicating an average value of pixel data of pixels around a pixel corresponding to the pixel data or a value obtained by leveling pixel data of the surrounding pixels; and a third step of subtracting the index data generated at the second step corresponding to the pixel data from each pixel data composing the second image data generated at the first step to generate third image data.