Math 77C: Lab

Image Processing Demos:

  • Linear Spatial Filtering
    av3_90.jpg
    ve_90.jpg
    eye25_90.jpg
    In this demo, we explain how to apply linear spatial filtering to an image and give several examples. The effects of three example filters on the elvis image can be seen to the right by mousing over the corresponding masks.
    linear_spatial_filtering.pdf       filt.m      
  • Histogram Equalization
    This demo describes a technique for enhancing contrast by adjusting image intensities according to its histogram.
    hist_eq.pdf       hist_eq.m      
  • SVD Compression
    In this example, the singular value decomposition (SVD) is used to compress images. Application to a test image is shown in the animation, SVD_animation.gif.
    SVD_compress.pdf       SVD_compress.m