FIGURE 3:

Image restoration accuracy of each data set. The VQ-VAE-2 model was trained on a single data set (A3) and applied to all data sets to extract image features. (A) Comparison of the original images and the restored images by the model trained with data set A3. (B) Average MSEs calculated between the original images and the restored images (lower MSE is better). All MSEs were less than 36 (i.e., averages were less than 6) for eight-bit images, indicating good restoration performance regardless of the data set.