Image resolution enhancement is useful in many applications.However

traditional image resolution en-hancement algorithms often produce images with various artifacts

especially around edges on the image.In this paper

contraposing the disadvantages of traditional algorithms

we present an adaptive algorithm to enhance image resolution.In this algorithm

the texture attribute of images is considered.Appropriate filters are selected in different texture circum-stances.Especially for the edge positions

the resolution enhancement is completed in two iterations in order to improve the precision and try to interpolating along edges

not across them.Therefore

this algorithm is based on edge detection technique.Through a MSE evaluation comparison

this algorithm is better than traditional interpolation methods（quadratic and cubic interpolation functions）.This algorithm does not suffer from ringing and blurring artifacts.It is demonstrated that our algorithm is reasonable and effective.