FYI: Web Resources:
At the recent National Imaging Technology in Education Conference
(Rochester, NY), middle- and high-school students demonstrated individual
and class projects highlighting imaging technology in the classroom: comparing
lichen growth over time, measuring crystal growth, and measuring volcanoes
on Mars and Venus to mention a few. One class learns biology by writing
its own online lab manual using digital images that the students take!
At the same conference, teachers explained how they use digital imaging
and processing in their classrooms to map the moon, to study the preservation
of farm lands, to introduce weather and oceanography images into class
projects (a CD of this conference will be available through the CIPE site
Figure 1: Image J Histogram and Calculation Menu.
Image Processing can be used to enhance images as well
as to extract information from images. For classroom teachers, most of
the software and images are free. Image analysis in K-12 classrooms can
be used to promote inquiry, science, art, and mathematics goals
If you would like to take the plunge and use image processing
in your classroom this year, web resources are listed below. [These URLs
were "live" in August, 2000. This page and links will be available for
a short time at http://www.canby.com/hemphill/FYIIP2000.htm
Figure 2. Scion Image Measuring Tool.
. NIH Image is the star of imaging software. It is a Mac public domain
image processing and analysis developed at the Research Services Branch,
National Institute of Mental Health, at the National Institutes of Health
(NIH). The author is Wayne Rasband.
. Scion Corporation produces a PC format imaging program, a la NIH Image.
The program is free, although you must register. The Beta 4.02 version
is the least buggy version.
. Wayne Rasband has introduced Image J, based on his NIH Image program,
with more capabilities. It is available for both Mac and PC. A help section
is available at http://rsb.info.nih.gov/ij/docs/concepts.html
. Its strongest advantage is in opening JPG images.
: CIS Lab, brought to us by Dr. Jon Arney and the folks at Rochester Institute
of Technology, is a free viewing program which tries (it is still in beta
testing) to incorporate the desirable features of several different programs.
It is available for Windows as a zipped file. It was written by a student,
: ImageMagick is available free for manipulating images to be uploaded
to the web.
: A page of program resources from Geology Net, all freeware programs.
: a list of image programs and resources for UNIX….
Lessons and Imaging Help:
Figure 3: CISLab Calculation
. The Center for Imaging Processing is a great resource for teachers. They
develop instructional materials that use image technology, especially in
biology, math, and physics. They have (for sale) lesson-resource kits for
Anatomy & Physiology, Environmental Science, and for Biotechnology.
However, they provide free resource links and sample lessons.
: A great resource page with image sources (as well as remote sensing and
: This page links to sample lessons developed by CIPE imagers for their
packages: Animal Hands (a lesson using imaging to compare hands,
flippers, wings); Brain’s Blood Supply (teaching students the use
of imaging in analyzing blood vessel size and blood flow); Eruption
Plumes of Io (measuring ejection of Io plume material); Gel Electrophoresis;
in Circles (diameter and circumference measurements); On Tour in America
(using NIH Image or Scion measuring tool).
: An image processing resource list from the Network Cybernetics Corporation
with many links to digital imaging URLs. It also has links to ED imaging
and to image restoration. Geared more to the imaging professional than
the K-12 teacher.
: Space-Variant Image Enhancement, a page by Kenneth Castleman is one technique
used to pull out details in forensic image processing. An advanced technique.
He describes another mathematical technique for enhancing images at http://psidev.persci.com/~castleman/haar1.html
Once you have a freeware or shareware program to use for
imaging, where do you find images on which to use it? The preeminent use
of NIHImage has been in medical imaging: microscopic images and, especially,
Magnetic Resonance images (MRI). It is now used to extract data from images
in many other disciplines, such as earth and planetary science.
. A listing of medical sources of free data, especially MRI images, that
biology teachers could use with NIH Image, Scion Image or other imaging
: The Interactive Nano-Visualization project is a tremendous resource for
teachers. Dr. B.L. Ramakrishna of the Center for Solid State Science at
Arizona State University. Through an NSF grant, has made Scanning Probe
Microscopy (SPM) available live over the web to students and teachers for
experiments and imaging! An image bank is available as well as 17 learning
modules. The modules, which start with the basics of the SPM, range from
"The Music of Spheres" to "Why does a Light Bulb Burn Out?" to "The World
of Liquid Crystals." They include images of yeast, iridescence, biominerals,
biological and engineered materials, blood cells…. A resource well worth
Temple University Biology confocal microscopy images can be downloaded
(but cannot be viewed online).
: California State University at Stanislaus makes available the images
taken with their research microscope at this page. Images available for
download include human, horse, and grape chromosomes, along with an image
of a rat cerebellum.
: The biology project pages of the national Center for Microscopy and Imaging
Research at the University of California, San Diego demonstrate the use
of digital imaging in biological research.
/ Images from NASA projects, including an online gallery of
Neurolab images, images from a microgravity project, as well as archived
Life Science images.
: A NASA site for searching photos of earth taken since 1968. This site
includes a clickable map of the earth, leading to astronaut photography
of different regions (which themselves are further "clickable" by latitude
: This page from the above NASA site lists the images of the Northwest
from Seattle to Olympia to Portland, including images of the Cascades,
Mount St. Helen, Mt. Hood, Mt. Ranier, the coast, the Columbia River….
: Nasa’s JSC digital image collection, with thumbnail images, are available
: Las Positas College (CA) offers an astronomy course in which NIH Image
or Scion Image is used to view images, such as the "moons of Jupiter,"
the "rotation of Mercury," and the "expansion of the Universe." The page
is dated 1998.
: The images on this web page are, I believe, for sale. However, I include
the page here for the potential use of K-12 digital imaging projects. E.
M. Kinsman has images of ice freezing in polarized light, of light interference
on a thin film of soap, and examples of time-lapse photography that could
be use in a classroom, in addition to image capture using a microscope.
Standard, non-science, images used in digital imaging, including the famous
Oregon Episcopal School