| Document Ink Bleed-Through Removal with Two Hidden Markov Random Fields and a Single Observation Field Recent countries visiting this post |  |
 | 6 | United States |
 | 1 | China |
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| Document Ink Bleed-Through Removal with Two Hidden Markov Random Fields and a Single Observation Field Recent countries visiting this post | |
| 6 | United States |
| 1 | China |
| 1 | Russian Federation |
| 1 |