Fusing Reflectance based LDR Images to Generate HDR Image

HDR image reveals the fine details of LDR image. In this paper, we estimate the illumination map by fusing the illumination of long-exposure like reflectance, and short-exposure like LDR images. Then, we generate HDR image by using the illumination of fused and input LDR image. We evaluate our method by using three no-reference quality metric; histogram balance (HB), natural image quality evaluator (NIQE), and colorfulness-based patch-based contrast quality index (CPCQI). We compare our method with two reverse tone mapping methods. We show that our proposed method achieves the best result in terms of visual experience than other methods.