Zhuzhou Tang, ID:0485249
Homework 2
1. Describe how the cones in the retina behind the human eye enable us to perceive
color. What are the different types of cones we have? what colors are they each
sensitive to?
There are cones in the retina behind the h
Department of Electrical Engineering, Polytechnic University, Brooklyn EL5123 - DIGITAL IMAGE PROCESSING (I)
Fall 08 Y. Wang
Final Exam 12/17/2008, 3PM-5:50PM
Your Name: _ ID Number: _ Closed book. One sheet of notes (double sided) permitted. For problems
Department of Electrical Engineering, Polytechnic University, Brooklyn
Fall 05
EL512 - DIGITAL IMAGE PROCESSING
Yao Wang
Midterm Exam
10/31/05, 3:35 5:50 PM
Your Name: _SOLUTION_
Student ID: _
Write your solutions in the space provided next to the questio
EL5123 Image Processing
Fall 2011
Midterm Solution
Problem 1: 10pt
Solution:
a) In a color camera, similar to the cones of human visual system, there is a
separate sensor sensitive to each of the three primary colors (R, G and B) that
records this compone
vbDepartment of Electrical Engineering, Polytechnic University, BrooklynFall 2011
EL5123/BE6223 - DIGITAL IMAGE PROCESSING
Yao Wang
Midterm Exam
11/2/2008, 3:00 5:40 PM
Closed book, 1 sheet of notes (double sided) allowed.
No peeking into neighbors or una
Polytechnic Institute of NYU
EL5123/BE6223 - DIGITAL IMAGE PROCESSING
Fall 2012
Yao Wang
Midterm Exam (10/24, 3:00-5:30PM)
Closed book, 1 sheet of notes (double sided) allowed.
No peeking into neighbors or unauthorized notes. Cheating will result in getti
EL5123 MidTerm Solution (2013 Fall)
Q 1:
(a) The human being perceives color through different types of cones in the retina,
sensitive to different parts of the visible spectrum, corresponding to red, green and
blue colors primarily. The human brain fuses
Color Image Perception, Representation and
Contrast Enhancement
Yao Wang
Polytechnic School of Engineering, New York University
Yao Wang, 2015
EL-GY 6123
1
Why Study Image and Video Processing?
Purpose of image and video processing
Improvement of picto
Image Resizing and Warping
Yao Wang
Polytechnic School of Engineering, New York University
Yao Wang, 2015
EL-GY 6123
1
Samping and Resizing
Nyquist sampling and interpolation theorem
Common sampling and interpolation filters
Sampling rate conversion o
Two-Dimensional Fourier Transform
and Linear Filtering
Yao Wang
Polytechnic School of Engineering, New York University
Yao Wang, 2015
EL-GY 6123: Image and Video Processing
1
Outline
Continuous Space Fourier Transform (CSFT)
Discrete Space Fourier Transf
Digital Image Processing
E_mail:[email protected]
z
9
9
9
9
9
9
9
z
Rafael C. Gonzalez, Richard E. Woods
2003
9
Rafael C. Gonzalez, Richard E. Woods
Digital Image Processing(Second
Edition)Prentice Hall2003
9
z
Kenneth R. Castleman
2002
9
2003
9
% MATLAB Assignment I
% Image and Video Processing (EL-GY 6123)
% Author:- Rohan Dotihal (N17566066)
% III i.
ii.
iii.
iv.
Read color Image.
Convert into 8 bit gray scale Image using formula.
Generate digital negative of image
Display all the images.
A= i
Eolytechnic Institute ofNYU Fall 2012
EL5123IBE6223 m DIGITAL IMAGE PROCESSING Yao Wang
_______________.__--
Final Exam (1221 93' 12, 3:00-5:30PM)
Closed book, 1 sheet of notes (double sided) allowed.
No peeking into neighbors or unauthorized notes. Che
Department of Electrical Engineering, Polytechnic University, Brooklyn EL512 - DIGITAL IMAGE PROCESSING (I)
Fall 04 Z. Liu
Solution of Final Exam 12/16/04, 9:00 AM 12:00 PM
Your Name: _ ID Number: _ Open book and notes. Write your solutions in the space p
Final Term Review
Yao Wang
Polytechnic Institute of NYU, Brooklyn, NY 11201
Topics Covered Before Midterm
Image representation
Color representation
representation
Quantization
Contrast enhancement
enhancement
Spatial Filtering: noise removal,
sharpening e
Department of Electrical Engineering, Polytechnic University, Brooklyn
EL5123 - DIGITAL IMAGE PROCESSING (I)
Fall 00
Y. Wang
Final Exam
12/22/2009, 1PM-4PM
Your Name: _
ID Number: _
Closed book. One sheet of notes (double sided) permitted. Write your solu
Introduction to Image
Processing
Yao Wang
Dept. Electrical & Computer Engineering
Brooklyn, NY 11201
NY 11201
Adapted from slides by Zhu Liu
Lecture Outline
Applications of image processing
Demonstration of basic image processing
of basic image processi
Lecture 2
Color Representation
and Quantization
Quantization
Yao Wang
Polytechnic Institute of NYU, Brooklyn, NY 11201
With contributions from Zhu Liu, AT&T Labs
Most figures from Gonzalez/Woods: Digital Image Processing
Lecture Outline
Color perception
Contrast Enhancement
Yao Wang
Polytechnic University, Brooklyn, NY 11201
University Brooklyn NY 11201
With contribution from Zhu Liu, Onur Guleryuz, and
Gonzalez/Woods, Digital Image Processing, 2ed
Lecture Outline
Introduction
Linear stretching
stretchin
2-D Fourier Transforms
Yao Wang
Polytechnic University, Brooklyn, NY 11201
University Brooklyn NY 11201
With contribution from Zhu Liu, Onur Guleryuz, and
Gonzalez/Woods, Digital Image Processing, 2ed
Lecture Outline
Continuous Fourier Transform (FT)
1D
Spatial Domain Linear
Spatial Domain Linear
Filtering
Yao Wang
Polytechnic University, Brooklyn, NY 11201
With contribution from Zhu Liu, Onur Guleryuz, and
Gonzalez/Woods, Digital Image Processing, 2ed
Outline
Introduction
Noise removal using low-pass
DFT Domain Image Filtering
Yao Wang
Polytechnic Institute of NYU, Brooklyn, NY 11201
With contribution from Zhu Liu, Onur Guleryuz, and
Gonzalez/Woods, Digital Image Processing, 2ed
Lecture Outline
1D discrete Fourier transform (DFT)
2D discrete Fourier t
Median Filtering and
Median Filtering and
Morphological Filtering
Yao Wang
Polytechnic University, Brooklyn, NY 11201
With contribution from Zhu Liu, Onur Guleryuz, and
Gonzalez/Woods, Digital Image Processing, 2ed
Lecture Outline
Median filter
Rank ord
Lossless Image
Compression
Yao Wang
Polytechnic Institute of NYU, Brooklyn, NY 11201
With contribution from Zhu Liu
Partly based on A. K. Jain, Fundamentals of Digital Image
Processing
Lecture Outline
Introduction: need for compression
Review of basic p
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