quiz1_2010Fall - ECE 253a Digital Image Processing Pamela...

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ECE 253a Digital Image Processing Pamela Cosman 10/29/10 First Name: Last Name: ECE 253a QUIZ 1 This cover sheet is provided to give all students equal time. Do not turn it over until everybody has received a copy of the exam and you are instructed to start. You have 50 minutes to work on this exam. Please make sure that your copy of the exam is complete. There are 4 problems and a total of 5 pages (including the cover sheet). Each problem is worth 6 points. Problem Possible Score 1 6 2 6 3 6 4 6 Total 24 1
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1. Human Visual System: For each of the following, give a brief explanation of what it is. (a) Relative luminous efficiency function (b) Mach bands (c) Oblique effect (d) Contrast sensitivity function 2
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2. Binary Morphological Operators: The binary image below contains the letter E plus noise. The noise blobs are all of size 2x2 pixels and are separated from each other by more than 2 pixels. We use the convention that the E and the noise blobs are all 1-valued pixels, although depicted as black. Let A denote the foreground of the image (A is the set of all 1-valued pixels in the image). Let
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