Simulating Digital Image Processing used for the Archimedes Palimpsest

07/25/2001


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Table of Contents

Simulating Digital Image Processing used for the Archimedes Palimpsest

Archimedes

The “Archimedes Palimpsest”

Archimedes Palimpsest

Application of Imaging Science to the Archimedes Palimpsest

1 Color Image = 3 B&W Images

Color in Digital Images

Goal:

Tools:

Make an Inkjet “Palimpsest”

Create Digital Image of Palimpsest

Two Methods to Segment Images

Simple Calculation

Separating the Texts: Step 1

Separating the Texts : Step 2

Separating the Texts : Step 3

Separating the Texts : Step 4

Separating the Texts : Step 5

Separating the Texts : Step 6

Separating the Texts : Step 7

Processing the Images

Processing the Image: Step 1

Processing the Image: Step 2

Processing the Image: Step 3

Processing the Image: Step 4

Processing the Image: Step 5

Processing the Image: Step 6

Processing the Image: Step 6

Processing the Image: Step 7

Results...

If it did not work…

More Sophisticated Image Processing

Example of More Sophisticated Processing

Matrix of Measurements

Example of Pixel Output

Example of “Mixed” Pixel

Inverse Operator

Find “Inverse” Matrix Operator

Apply Matrix Inverse to (R,G,B) of Each Gray Level

Apply Inverse Matrix to Pixels in Color Image

“Overwriting” Channel

“Underwriting” Channel

Rotate “Underwriting” Image

Archimedes Resources

Author: Roger L. Easton, Jr.

Email: easton@cis.rit.edu

Home Page: http://www.cis.rit.edu/people/faculty/easton/