Digital Imaging I: Image Processing

Graduate Workshop (1 credit hour)
Marcia Lei Zeng, Ph.D.

Workshop Description

This workshop introduces students to the fundamental concepts, terminology, techniques and applications of digital imaging as they relate to the development of digital image collections depicting works found in museum collections, archives, and special collections in libraries. Students will acquire the knowledge and skills necessary to create, process, and manage digital images of text, graphics, slides, and reproductions of 3-D objects.

This workshop focuses on individual images.

Benefits:

1, to learn digital image processing primitives and transformations;
2, to understand the representational issues in image processing;
3, to develop skills in digital image acquisition with various formats; and
4, to acquaint experience in image repairing and restoring.

Tentative Schedule

Pre-workshop reading assignment: (12 hours)

1. Kenney, Anne R. and Oya Y. Rieger. Moving Theory into Practice: Digital Imaging for Libraries and Archives.Research Libraries Group, 2000. Online tutorial at http://www.library.cornell.edu/preservation/tutorial/
Read : Preface, Chapter 1.  Basic Terminology; Chapter 6.  Technical Infrastructure (A. Digitization Chain and B. Image Creation)

2. IMLS. 2006. Status of Technology and Digitization in the Nation’s Museums and Libraries. Key Findings. Download PDF from: http://www.imls.gov/publications/TechDig05/findings.htm

FYI: The whole report's PDF is available at: http://www.imls.gov/publications/TechDig05/Technology%2BDigitization.pdf

Day One (link to lecture notes)

1. Introduction

1.1 How is digitization changing libraries, museums, & archives?

• The Digitization Activities
• Examples of digital collections, digital archives, digital exhibitions, etc.
• Major government funding

1.2 Workshop Objectives, Procedures, Projects, Evaluations

• The Digitization Chain
• In-Class Practice Assignments
• Final Project

2. Digital Imaging : Basic Concepts and Terminology

2.1 The Mechanics of Digital Imaging

2.1.1 Pixels

2.1.2 Basic Image Measures

• Resolution
• Bit Depth
  
  Practice 1. Basic enhancement
  
• Color

Practice 2. Working with colors -- Part 1.

2.1.3 Image Types

2.1.4 File Formats

2.2. Acquiring Images

2.2.1 Image Acquisition Basics

2.2.2 Scanning

2.2.3 OCR (Optical Character Recognition)

2.2.4 PDF

2.2.5 Digital Cameras

Practice 2. (cont.) Working with colors -- Part 2.

Practice 3. Image acquisition

Day Two

3. Advanced Enhancement and Restoration

3.1 Special Enhancement Processes

Practice 4. Special enhancement processes

3.2 Photo Restoration and Enhancement

Practice 5. Photo restoration

4. Organizing Small Image Collections

Web Photo Gallery

Practice 6. Creating a Web Photo Gallery

Final Project

Image Processing with Digital Technologies

©Marcia Lei Zeng 2001-2006