Sign Up
Sign In
Submit
Home
Journals
Articles
Books
Resources
About Us
Open Journal of Educational Research
+ Journal Menu
Journal Overview
Journal Home
For Authors
Abstracting and Indexing
Publication Ethics
Copyright
Article Processing Charges
Archive
Current Issue
Aims & Scope
Editorial Board
Reviewer Board
Journal Home
Archive
Current Issue
Aims & Scope
Editorial Board
Reviewer Board
Open Journal of Educational Research
Archives
Volume 1, Number 1, 2021
Article
Figure 4
Article
Standards for Digitization in Cases of Maps, Documents, and other Relics in the Service of Cultural Heritage
Figure 4
Scanning a halftone image in 150 dpi (left) and 400 dpi (right).