Research Article
A New Data Model for the Privacy Protection of Medical Images
Figure 4
The halftoned images with error diffusion and our gray_level methods. (a) Original image. (b) The halftone image with all gray levels. (c) The halftone image with 4 gray levels. (d) The halftone image with 2 gray levels.
| (a) |
| (b) |
| (c) |
| (d) |