1. A method for converting color image resolution with an image resolution converting device, comprising: inputting an image enlarging ratio; inputting target pixel data of an image in a first color space to be enlarged in a sequence; sampling, by the device, reference pixels including the target pixel and pixels at least one of which links to the target pixel; converting, by the device, the sampled reference pixel data in the first color space into reference pixel data in a second color space data; comparing, by the device, a pixel data distribution of the sampled reference pixels with a plurality of matching patterns in the second color space; outputting one of a plurality of pixel embedding patterns according to a coincided matching pattern and the image enlarging ratio; generating filling color information for filing the pixels of the embedding pattern with colors according to a result of the comparing step; and filling the pixels of the embedding pattern with colors of the reference pixels in the first color space according to the generated filling color information.