| 摘要 |
An image processing apparatus generates a brightness component image of a low-sensitivity image by applying a smoothing filter to the low-sensitivity image, generates a brightness component image of a high-sensitivity image by applying the smoothing filter to the high-sensitivity image, generates a contrast component image of the low-sensitivity image by dividing the low-sensitivity image by the brightness component image of the low-sensitivity image, generating a contrast component image of the high-sensitivity image by dividing the high-sensitivity image by the brightness component image of the high-sensitivity image, generates a combined brightness component image by combining the brightness component images of the low-sensitivity image and of the high-sensitivity image, generates a combined contrast component image by combining the contrast component images of the low-sensitivity image and of the high-sensitivity image, and finally generates a contrast-expanded image by multiplying the combined brightness component image and the combined contrast component image. |
