Department of Electrical Engineering - Columbia University

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ELEN E4830 - Spring 2008


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Course outline

Columbia Courseworks



Welcome to the web site for Digital Image Processing. Below is some introductory material about the class. This web site will act as a conduit for lecture notes, problems sets, etc. throughout the semester, other materials will be posted on Courseworks.


General Information

Lecturers: Lexing Xie
Research Staff Member
IBM T J Watson Research Center

xlx _at_
Tel 914.784.6191
Shahram Ebadollahi
Research Staff Member
IBM T J Watson Research Center

shahram _at_
Tel 914.784.6250
Instructor office hours: Mondays 3:00 - 4:00 pm, 1312 Mudd
Teaching assistant:

Wei Liu
wliu _at_

Tel: 212.854.6887
Office hours: Thursdays 3-5pm, CEPSR 711
Mailbox: #M5 at EE Department

Digital Image Processing, 3rd Edition
by Gonzalez and Woods, Prentice Hall 2008 (ISBN 9780131687288)
links on amazon, bn

Reference books:

  • Fundamentals of Digital Image Processing, Anil K. Jain, Prentice Hall, 1989 
  • William K. Pratt, Digital Image Processing, 3rd Edition, John Wiley, 2001.
  • Kenneth R. Castleman, Digital Image Processing, Prentice Hall, 1996.
  • Arun N. Netravali, Barry G. Haskell, Digital Pictures, Plenum, 2e, 1995.
  • Sonka, Hlavac and Boyle, Image Processing, Analysis, and Machine Vision, 3rd edition,CENGAGE-Engineering
  • Lectures: Mondays, 4:10 - 6:40 pm
    Mudd Room 1127
    Credits: 3
    Course web site:


    This course will introduce fundamental technologies for digital image and video representation, compression, analysis, and processing. Students will gain understanding of algorithm and system design, analytical tools, and practical implementations of various digital image applications.

    Topics include digital image/video perception, sampling, optimal quantization, halftoning, transform, filtering, multi-spectral processing, restoration, analysis, feature extraction, morphological transform, coding, segmentation, and 3D model reconstruction. Considerations of practical system requirements (e.g., medical, satellite, consumer) will be discussed as well. We will also have hands on experience in applying analytical solutions in practical applications.


    The course assumes knowledge about signals and systems, as well as a basic familarity of linear algebra and probability.

    Grade structure

    The course consists of lectures each week, six homeworks (practical and experimental), a midterm and a final. The grade breakdown will be announced.

    HWs will include both written problems and practical problems that will be run under the numerical computation package Matlab, or other computer language of your choice.

    HWs are due Mondays 4:10pm in class in TA's mailbox or email inbox.

    Late policy for homeworks, applying to both the analyticals and experimentals. 

    You have an option to submit the HWs beyond the due date (but before the solutions are out), they will be graded with the same standard but will be multiplied by the following damping factors (as a function of time) when it counts towards the overall grade.

    1 day (1-24 hrs): 0.8
    2-4 days (25-96 hrs): 0.5
    up to a week (7 days, or 148 rs) late: 0.2
    after that 0.0

    Course materials

    Lecture notes, HWs and other course materials will be posted either on the course outline page of this web site or ColumbiaCourseworks.



    Important announcements and class updates will be sent to the class either via email and/or the course webpage. Please check both regularly.

    Please put "[DIP-E4830]" in the title of any email correspondences you send with the instructors or the TA. Thank you.


    Lexing Xie <xlx at>
    Last updated:  2008-01-22