ECE 468: Digital Image Processing
Lecture 4
Prof. Sinisa Todorovic
1
Disclaimer
The following slides are just excerpts
from the textbook.
You should learn all material presented
in chapter 4 in the textbook!
2
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Lecture Notes for Digital Image Processing | ECE 468, Study notes of Electrical and Electronics Engineering
Material Type: Notes; Professor: Todorovic; Class: DIGITAL IMAGE PROCESSING; Subject: Electrical & Computer Engineer; University: Oregon State University; Term: Unknown 1989;
Typology: Study notes
Pre 2010
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ECE 468: Digital Image Processing
Lecture 4
Prof. Sinisa Todorovic
1
Disclaimer
The following slides are just excerpts
from the textbook.
You should learn all material presented
in chapter 4 in the textbook!
CFT of Rectangular Pulse
F (μ, ν) = AT Z
sin(πμT )
πμT
sin(πνT )
πνT
3
Sampling Theorem
Aliasing Due to Subsampling
7
Centering DFT
f (x, y)(−1)
x+y
→ F (u −
M
, v −
N
Example
9
Rotation in Space -> Rotation in Spectrum
Translation in Space -> No change in Spectrum