Homework #1: Image Measurements
Due Tuesday, October 8th 2002.
Professor Davi Geiger
In the word file image-measurements.doc you can find fast techniques to compute . Make sure you
read the document image-measurements.doc .
You are encouraged to work in small groups, no more than five students, and three students together works better than
five. However, submit and write your final homework independently.
1. Consider the following black and white image as the test image (40 Points)
TEST IMAGE
This image will be on the web site in three different formats: bmp, ras, jpg.
a. Compute for the 16 values θ=0, π/6, π/4, π/3, π/2, 2π/3, 3π/4, 5π/6, π,
7π/6, 5π/4, 4π/3, 3π/2, 5π/3, 7π/4, 13π/6 and 3 scales, s= 3, 5, 7. Μake sure you
compute only within a frame of 7 pixels away from the boundaries (largest scale).
Show the results as images for θ=0, π/6, π/4, π/3, π/2, 2π/3, 3π/4, 5π/6, and s= 3, 5, 7
(these are 24 images to show, use three pages to show them all, one page for 8
images. Write captions saying what is what (at most one line per image). You can
submit by e-mail or you can print it and give it in classt.)
b. Compute for the 16 values θ=0, π/6, π/4, π/3, π/2, 2π/3, 3π/4, 5π/6, π,
7π/6, 5π/4, 4π/3, 3π/2, 5π/3, 7π/4, 13π/6 and 3 scales, s= 3, 5, 7. Μake sure you
compute only within a frame of 7 pixels away from the boundaries (largest scale).
e-mail-or-print the results as images for θ=0, π/6, π/4, π/3, π/2, 2π/3, 3π/4, 5π/6, and
s= 3, 5, 7
(these are 24 images to show, use three pages to show them all, one page for 8 images.)
c. Compute for the 8 values θ=0, π/6, π/4, π/3, π/2, 2π/3, 3π/4, 5π/6
and 3 scales, s= 3, 5, 7. Show the results as 8 Images per scale. Μake sure you
compute only within a frame of 7 pixels away from the boundaries (largest scale).
e-mail-or-prin the results as images for θ=0, π/6, π/4, π/3, π/2, 2π/3, 3π/4, 5π/6, and s= 3,
5, 7
(these are 24 images to show, use three pages to show them all, one page for 8 images.)
2. Consider the following Noisy image (40 Points)
PAGE 1
