lecture07 - CAP5415 Computer Vision Spring 2003 Khurram...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
CAP5415 Computer Vision Spring 2003 Khurram Hassan-Shafique
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image Filtering Modifying the pixels in an image based on some function of a local neighborhood of the pixels 30 10 20 11 20 11 9 1 p N(p) 5.7 ( 29 p f
Background image of page 2
Linear Filtering The output is the linear combination of the neighborhood pixels The coefficients of this linear combination combine to form the “filter-kernel” ( 29 ( 29 = p N q i i i q a p f 1 3 0 2 10 2 4 1 1 Image 1 0 -1 1 0.1 -1 1 0 -1 Kernel = 5 Filter Output
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Convolution ( 29 ( 29 ( 29 ∑∑ - - = = k l l j k i H l k I H I j i f , , * , Kernel Image = = H I H 7 H 8 H 9 H 4 H 5 H 6 H 1 H 2 H 3 H 9 H 8 H 7 H 6 H 5 H 4 H 3 H 2 H 1 H 1 H 2 H 3 H 4 H 5 H 6 H 7 H 8 H 9 H flip X - flip Y - I 1 I 2 I 3 I 4 I 5 I 6 I 7 I 8 I 9 1 9 2 8 3 7 4 6 5 5 6 4 7 3 8 2 9 1 * H I H I H I H I H I H I H I H I H I H I + + + + + + + + = I
Background image of page 4
Linear Filtering 0 0 0 0 1 0 0 0 0 * =
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Linear Filtering 0 0 0 0 0 1 0 0 0 * =
Background image of page 6
Linear Filtering 1 1 1 1 1 1 1 1 1 9 1 * =
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Linear Filtering 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 25 1 * =
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Gaussian Filter ( 29 ( 29 + - = 2 2 2 2 2 exp 2 1 ,
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/12/2011 for the course CAP 5415 taught by Professor Staff during the Fall '08 term at University of Central Florida.

Page1 / 26

lecture07 - CAP5415 Computer Vision Spring 2003 Khurram...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online