Generating HDR radiance maps from single LDR image

作     者：Xiaofen Li Yongqing Huo 

作者机构：School of Communications and Information Engineering University of Electronic Science and Technology of China 

出 版 物：《光电工程》 (Opto-Electronic Engineering)

年 卷 期：2017年第44卷第6期

页      面：577-586页

核心收录：

学科分类：1304[艺术学-美术学] 12[管理学] 13[艺术学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China (61401072) 

主　　题：相机 响应函数 科学研究工作 图像 

摘      要：We present a method of generating high dynamic range(HDR)radiance maps from a single low dynamic range(LDR)image and its camera response function(CRF).The method first models and estimates the inverse CRF and then multiplies the inverse CRF by a weighting function to make it smooth near the maximum and minimum pixel values,and finally conducts the smooth inverse CRF on the input LDR image to generate HDR *** the method,the inverse CRF is estimated using one single LDR image and an empirical model of CRF,based on measured RGB distributions at color *** most existing methods,the proposed method expands image from both high and low luminance ***,the algorithm can avoid the artifacts and detail loss in dark area which results from extending image only from bright *** experimental results show that the approach induces less contrast distortion and produces high visual quality HDR image.