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Unformatted text preview: Polytechnic University, Dept. Electrical and Computer Engineering EE3414 Multimedia Communication System I Spring 2006, Yao Wang __________________________________________________________________________________________________ Homework 7 (Image Processing: noise-removal and sharpening) Reading assignment: Gonzalez and Woods, Digital image processing , 2 nd edition, Prentice Hall, 2002. Sec. 4.3, 4.4, 5.1 5.3 (copies provided) 1. Assume the image in Fig. 1(a) is the original, and that in Fig. 1(b) is with noise. For the image block in Fig.1(b), determine the image obtained after a) an averaging filter with 3x3 pixel window, b) a median filter with 3x3 pixel window. In both cases, you only need to determine the filtered values for pixels inside the one-pixel-width boundary (i.e. you dont need to perform filtering for pixels in the top row, bottom row, leftist and rightist columns). You should leave the pixels along the boundary as is. Also, you should round the filtered value to integer values. By comparing your results with the original image, comment on the...
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This note was uploaded on 02/04/2012 for the course COMPUTER 101 taught by Professor Ahmed during the Summer '11 term at alamo.edu.
- Summer '11
- Image processing