Comparison between Bicubic, Simple Edge Snsitive, New Edge-Directed and our method.
Left to right are: original image as a reference, its downsampling by 4 used as input for upsampling,
Bicubic Interpolation, our method's results, Simple Edge Sensitive (k=30) and New Edfe-Directed interpolations results.



A comparison between the Example-Based Super-Resolution and our method
(child face magnified by 4 and teapot by a factor of 8).

New method's result in color: left is using an outdoor edge statistics and the right on indoors.



Features extracted from the image, left to right are:
first row, total intensity jump. distance from edge, (source image),
in second row, edge scattering, edge side and the resulting
sigma for a horizonal offset.

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Camera Man

Input pixels      Bicubic interp.(x5)
new method(x5)     Total Variation (x5) [Aly and Dubois 2005]

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Chip

             x1                      x2                       x4                     x8

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Old Man

            x1                      x2                       x4                     x8

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Can

                     x1                                      x2                                    x4                                   x8

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Angels

         x1                      x2                       x4                     x8

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Dog's Cartoon (some noise is present in input)

             x1                      x2                     x4                      x8

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Girl's Face

          x1                      x2                       x4                     x8

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Sculpture

           x1                     x2                       x4                     x8

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Child's Eye x16                  Armchair x16

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Comparison with commercial software
Cameraman(x4)

Child's face

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Foliage Images
foliage1(x4)                                                 foliage2(x4)

foliage3(x4)                                                 foliage4(x4)