Abstract: A method is provided for displaying an original high-resolution digital color image on a low-resolution color dot-matrix display such as a liquid crystal display (LCD). Generally speaking, the method is used to display an original digital color image of a resolution of A×B on a color display of a resolution of C×D, where A, B, C, D are positive integer numbers and A>C and B>D. The first step is to group the pixels of the original digital color image in a unit of E into a plurality of groups equal in number to the pixels in the color display, where E is a ratio value obtained by rounding up the result of the division of A by C to the nearest integer number. Each of the groups is matched to one pixel in the color display. From each group, a set of RGB values is respectively extracted from selected pixels in the group, in a featured RGB extraction method. The final step is then to drive each pixel in the color display to display a specific color corresponding to the assigned RGB values.