Table of Contents
Type
Number of Colors, Shades of Gray, Line Art
Scanning Color Photos
Black and White Photos
Line Art
Define and show an example of each type of art.
Choosing DPI
Scanning for the Monitor (Amanda and Sara --Josh C and Brian )
What are common DPI settings when scanning for a monitor?
How are DPI and image size related when shown on a monitor?
Relationship between DPI, real image size, and screen size
When should lower DPIs be used?
When should higher DPIs be used?
How are DPI and file size related?
Scanning for the Printer (Chad and Matt -- Josh S ane Jon)
What are common DPI settings when scanning for a print?
How are DPI and image size related when the image is printed?
What are the advantages and disadvantages of scanning athigher DPIs?
Scanning for E-mail and the Web (Kody, John & Jeremy --Matt and Aaron)
What are two basic desired characteristics of an image scanned
for use on E-mail or the Web?
What is a typical file format used for Web images?
What is file compression?
What file format has built in file compression features?
How universal are JPEG files?
How does cropping help reduce file sizes and maintain quality?
Histogram (Highlights and Shadows) (Kody, John & Jeremy --Colin and Eashaan)
What is an histogram?
What scale values are used for an histogram?
What does the histogram adjust and why is it used?
What are two steps used to adjust an histogram?
Should the histogram be adjusted before or afterthe final scan?
What is the effect of adjusting the white pointer from 255 to 223?
In addition to changing the amount of white light reflected,
what else does adjusting the histogram do?
What does adjustment of the histogramÕs midpoint do?
How does one set the histogram if there is no white in the photo?
After the histogram is set, what further adjustments can be used?
Unsharp Masking (Refocusing the Scan) (Alex and Kelsey)
What is the purpose of unsharp masking? Why is it necessary?
What is the radius in the context of a scanner setting?
What two factors determine whether the radius setting should
be large or small?
What does the Amount setting do?
What does the Threshold setting do?
What are two effects of a very low Threshold setting?
What is the effect of a very high Threshold setting?
What two groups does the author use to describe pictures?
Combine the two charts.
Descreen (Removing Moire Pattern from halftones) (Tomy and Scott --Eryn and Jesse)
What method or process is used to print pictures in magazines
and newspapers?
Briefly, explain what this process does?
What is a Moire?
What is the purpose of descreening an image?
What effec does using Descreen have on the scanning of a photograph?
If a Descreen option isnÕt available in the software being
used, what alternative is available?
More Settings (Color Tint, Brightness, Contrast, Blur, Sharpen)
(Eden and Steve)
If you are a beginner, what Color Tint, Brightness, Contrast,
Blur, and and Sharpen settings should be used?
Explain the meaning of hue as used in a scanning context.
Explain the meaning of saturation as used in a scanning context
Explain the meaning of brightness as used in a scanning context.
Explain the meaning of contrast as used in a scanning context.
Explain the meaning of blur as used in a scanning context.
Explain the meaning of sharpen as used in a scanning context.
Saving Your Scan to Hard Drive (File formats) (Tim and Drew --Taylor and Gabrielle)
What is a file format? (answer not in the reading -- look
elsewhere)
What are three basic file formats which work well for a
beginner is scanning images?
What does JPEG (or JPG) stand for?
What are three reasons JPEG is widely used?
What is the function of a lossy format?
If you were going to open and close a file several times while
touching up the image, why would you want to use a format
other than JPEG?
What are three advantages of using a TIFF (TIF) file format?
What does BMP stand for?
Which platform uses BMP format?
What are the general characteristics of BMP format?
Printing Scans (Inkjet Printers) (Janelle & Melanie -- Aaron and Neils)
Generally, how does an inkjet printer work? (answer not in
the reading -- look elsewhere)
What are some basic types of paper used for inkjet printing of
images and what are the advantages or disadvantages of
using each type?
Your Scanner (What do the numbers mean?) (Travis and Ben -- Zach and Laura)
What does 24-bit, 30-bit, or 36-bit color mean when referring
to a scanner?
What does the the designation 600 DPI x 1200 DPI optical
resolution mean?
What is interpolated resolution? (may need to look beyond this
resource)
Quick Guide (Checklist of Basic Steps)
Make a copy of general scanning steps (use printer friendly
version from the index), then try out the steps with the scanner in the
library or your scanner at home. Adjust the steps to fit the scanner used.