Numerical Results in Slope Recovery

	Figure 1. Original image in DEM format	Figure 2. Original image after JPEG-LS compression/decompression	Figure 3. Decompressed JPEG-LS image after LSS slope recovery algorithm

    

  Figure 4. Errors in slope: For 3 images, the error in slope is measured for both JPEG-LS compression with
  and without LSS' slope recovery method. The errors on the chart are in percentages and
  the comparison is made for fixed compression ratios.

  Figure 5. Compression ratios: For 3 images, the compression ratio is measured for both JPEG-LS compression with
  and without LSS' slope recovery method. The numbers are the compression ratios and
  the compression is made for a fixed error in slope.




  

  Figure 6. Original DTED Image in DEM format

    

  Figure 7. Level set representation: The original data from Figure 6 can be visualized in 2D as a color map with
  different colors corresponding to different height elevations. Image is courtesy of G. Sapiro.

  Figure 8. 3D rendering: The original data from Figure 6 can be visualized in 3D. Rendered image is courtesy of G. Sapiro.