外挿画像モーフィングのためのダイナミックレンジ圧縮

抄録

Image morphing method can generate new emphasized images smoothly from input images by extrapolation. It is one of the useful methods for making an impressive movie. However, the extrapolation of image morphing has a problem that the output images often have dynamic range higher than its input images. Generally, at a device for the input images having low dynamic range, we cannot display the output images having higher dynamic range. In this paper, we propose a dynamic range compression method for the images generated by extrapolation of image morphing. This method compresses the dynamic range into it having the input images, while it preserves image visibility and smooth variation from the input images. This method achieves a reproduction of the emphasized image by extrapolation of image morphing, without high dynamic range device. In the experiment, we confirmed the visibility quantitatively and smooth variation from the input images qualitatively.