An Introduction to Digital Images

  1. What does a digital image consist of?
    1. Vector Representations
    2. Bitmaps
      1. Monochrome
      2. Greyscale
      3. Colour
        1. RGB
        2. CMY
        3. HSV
        4. YCbCr
        5. Indexed
  2. What information does a digital image contain?
    1. Statistical Data
    2. Intensity Surface
    3. Fourier Transform
  3. What things can we do to digital images?
    1. Pointwise Operations
      1. Invert
      2. Increase contrast
      3. Arbitary mapping of intensities
      4. Threshold
      5. Scale intensities
    2. Neighborhood Operations
      1. Convolution
      2. Band pass filters
      3. Averaging functions
      4. Edge detection
  4. How can we efficiently store digital images?
    1. Obvious storage problems
    2. Common storage types
      1. GIF
      2. JPEG
  5. References
    1. Texts
    2. Software
    3. Download

Home: Adam FitzGerald
fitzgera@math.unc.edu
Modified: 15-Nov-1998