The color digital image inpainting method based on multispectral image is proposed for the digital archive of defective Painting Art. The multispectral image is decomposed with KL transform, then the decomposed image is inpainted using the CDD model based on curvature driven diffusion. This method can avoid pseudo color caused by simultaneous repairing of R, G, B three bands of multispectral image, and repair effects are better and in accordance with the “connectivity principle” of human vision. Image details are less distorted. Digital image colors are rich by spectral reflectance reconstruction of multispectral image, and they are closer to the inherent colors of Painting Art and the observation effect of human eyes. It can provide reliable basis for digital inpainting and digital archive work of Painting Art.
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