By building a mapping between the squares of input pixel light values and the output pixel light values,the map curve with different trend changing at shadows and highlights in one image is obtain.The experimental results show that the proposed method can adjusthts simultaneously,and make the details at shadows and highlights become distinct.This algorithm is implemented on Altera′s EP1C12Q240C8 real time,and composes of about 450 LE.The maximum frequency can be up to 143 MHz.This algorithm can ...