1. A method of image enhancement, comprising: detecting a degree of color saturation in an image area; and filtering at least one spatial detail in the image area by: determining a first luminance value corresponding to a pixel of interest in the image area; determining a second luminance value corresponding to one or more neighboring pixels neighboring the pixel of interest; obtaining a difference in luminance value between the first luminance value and the second luminance value; and amplifying the difference in luminance value by a factor that increases as the degree of color saturation increases.