| 摘要 |
A captured image of the circumference of a vehicle is processed so as to reduce influences of variation of luminance and color of a road surface; thereby, a lane mark on a road on which the vehicle is traveling is detected precisely from the image. An image processing device (10) for vehicle is provided with a kernel setting means (12) which sets a plurality of kernels for smoothing which have a width supposed to be between the width of the lane mark and that of the road to the image acquired via an imaging means (2), a smoothing means (13) which smoothes the acquired image by filtering using the set kernels for smoothing, a variation degree calculation means (14) which calculates the amount of variation of the pixel value of each pixel between the acquired image and a smoothed image, and a pixel value replacement means (15) which replaces the pixel value of a pixel which is of the acquired image and has an amount of variation not larger than a predetermined value to a specific value. |
