抄録
Demands to obtain high-resolution images are increasing recently in many appliances, such as large TV units, HD cameras, mobile phones and so on. Many interpolation methods such as bi-linear, bi-cubic, and Lanczos methods have been developed which up-scales digital images, however, they result in high resolution blur, because they do not include estimating higher frequency components. Thus, we propose an up-scaling method using both morphological operation and image separating based on the Total Variation method. The proposed algorithm reduces environmental noise as well as blurring from the result. As an experiment, we prepared a down-sampled QVGA image and then, applied the Lanczos resampling, the Laplacian pyramid, and the proposed method. The result images successfully demonstrate the effectiveness of the proposed method, while the MSE figure shows some degradation in some images.
