1. An image-processing method that converts a skin color of an image implemented by an image processing apparatus comprising a processor having computing device-executable instructions, the method comprising: detecting a face region of an image using multi-view; verifying that the face region contains a face by analyzing characteristics of the face region when a face region is detected; establishing a skin color model when the face region is verified to contain the face, wherein the skin color model is created in a two-dimensional oval by using skin color that is created based on a pixel value of the detected face region and by displaying skin color of the face region in a color area; extracting a skin region from the image using the skin color model, wherein when color of a pixel is classified as a skin color in the skin color model, the pixel is determined to be a pixel of the skin region; and converting the skin color of the extracted skin region into a desired skin color, wherein the multi-view is moving sub window in a screen, or using a template with diversely rotated faces, and wherein when the image includes the detected face region, the image is a whole image including pixels inside and outside of the face region.