Imaging Tutorials

Imaging Optics

How a Telescope Works by Russ Palum (Eastman Kodak Company)
Learn the optical properties behind how a telescope makes things that are far away seem closer

How a Picture can be Represented as a Collection of Numbers by James Milch (Carestream Health Inc.)
What does it mean to be a digital image?
What is Inside a JPEG File by Carl Salvaggio (Rochester Institute of Technology)
Most of us save our digital photographs as JPEGs, but what does that really mean?
Image Capture Beyond 24-Bit RGB by Donald S. Brown (Eastman Kodak Company)
Learn more about digital image capture and how digital images convey color

A Tutorial on Printing by James C. Owens (retired Eastman Kodak Company)
A primer to digital printing, including discussion of halftoning, color reproduction, and various printing technologies
How a printing press works by Eric Hanson (Hewlett Packard Laboratories)
Learn the basics of an offset lithographic press
How an ink jet printer works by Eric Hanson (Hewlett Packard Laboratories)
Thermal and piezoelectric ink jet printers are dissected in this tutorial
Progress and Trends in Ink-jet Printing Technology by Hue P. Le (Le Technologies, Inc., Beaverton, Oregon)
Learn more about the development of the ink jet printer
Electrophotography Overview by Howard Mizes, Dan Hays, and Nancy Goodman (Xerox Corporation)
Also known as xerography, this printing method relies on electrostatic charges and photoconductive surfaces
Color Solid Ink Printing by C. Wayne Jaeger (retired Xerox Corporation)
This printing technology uses solid inks that are melted during the printing process to create the image
An Introduction to Photothermography by M. R. V. Sahyun (retired 3M)
Based on silver halide technology, new media is being used for applications in our digital age