Edge Darkening Art Painting Color Correction Method Based on Penumbra Region Correction
Because art paintings are affected by the performance of the equipment and the environment,the color changes or fades,and the edge darkening is usually subtle,resulting in the inability to accurately capture and repair the subtle color changes in the painting.Therefore,a color correction method for edge darkening art painting based on penumbra region correction is proposed.The color of the original painting is collected by near infrared spectroscopy,and the color deviation in the dark area is judged in the Lab color space.The corresponding transformation function is adopted to remove the penumbra in the dark area,the mean variance method is adopted to make the color distribution in umbra region consistent with the original painting.Experiments show that the color corrected by the proposed method is consistent with the original painting visually,and the root-mean-square error is lower than that of the traditional method.
Lab color spacepenumbra darkeningumbra darkeningmean variance methodart painting
万方数据
维普
