Image enhancement is an important task of image processing. We propose an algorithmic adaptive image enhancement method based on image information measure in this paper. At the image pixel level

image pixels are classified into smooth pixels and edge pixels by using image information measure

then the smooth pixels are farther classified into smooth pixels and ridge pixels aiming at the feature of form image. Relevant filtering algorithms are designed for different types of pixels

which realizes algorithmic adaption and enhance image primarily. Finally

the multi_level fuzzy enhancement algorithm is imposed to enhance image contrast and achieve a better enhancement effect. Experimental results show that the algorithm can enhance the low contrast image effectively and obtain a very good visual effect.