  We propose a novel hue-correction scheme for multi-exposure image fusion
(MEF). Various MEF methods have so far been studied to generate higher-quality
images. However, there are few MEF methods considering hue distortion unlike
other fields of image processing, due to a lack of a reference image that has
correct hue. In the proposed scheme, we generate an HDR image as a reference
for hue correction, from input multi-exposure images. After that, hue
distortion in an image fused by an MEF method is removed by using hue
information of the HDR one, on the basis of the constant-hue plane in the RGB
color space. In simulations, the proposed scheme is demonstrated to be
effective to correct hue-distortion caused by conventional MEF methods.
Experimental results also show that the proposed scheme can generate
high-quality images, regardless of exposure conditions of input multi-exposure
images.
