To provide an image feature emphasis device, a road surface feature analysis device, an image feature emphasis method, and a road surface feature analysis method that can improve precision of feature detection on a road surface in a road surface image.SOLUTION: An image feature emphasis device according to an embodiment has a region acquisition unit and an image feature emphasis processing unit. The region acquisition unit acquires a region of a road surface part from a picked-up image. The image feature emphasis processing unit varies, based upon the highest luminance value and the lowest luminance value in the acquired region of the road surface part, a luminance value in the region of the road surface part so as to emphasize features of the region of the road surface part.SELECTED DRAWING: Figure 2
展开▼
