4_homework4

4_homework4 - EE 211A Fall Quarter 2011 Instructor John...

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1 EE 211A Digital Image Processing I Fall Quarter, 2011 Handout 11 Instructor: John Villasenor Homework 4 Due: Thursday, 20 October 2011 Reading: Textbook pp. 20-31, 132-180. 1. For the 2 x 2 transform A and the image U 31 2 3 1 , 12 2 13 AU ΡΤ == ΢Υ ΣΦ calculate the transformed image V and the basis images. 2. (a) Consider a 2D real sequence ) , ( n m u of size 4 × 4 whose DFT ) , ( l k v has been determined. Suppose that these data were stored on computer, and that a careless colleague has accidentally erased ), , ( n m u as well as several of the elements of ). , ( l k v Nine of the 16 elements of ) , ( l k v were not erased and are indicated below by the letters A through I. These letters may in general represent complex numbers. Where possible, give the missing elements of ) , ( l k v in terms of the letters A through I. Where this is not possible, write a question mark. 0
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4_homework4 - EE 211A Fall Quarter 2011 Instructor John...

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