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EPFL Fractional Splines
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Fractional (α,τ)-Spline Wavelet Demo (II)
NEW : You can upload your own image into the applet.
Choose your image file and click on the button "Start the Applet Demonstration".
The applet accepts GIF or JPEG 256*256 pixels image (max size 1 Mb).

Your browser does not support Java.
Instruction to use the applet
  1. Choose an input image in the list.
  2. Choose a type of filter.
  3. Choose an order ]-0.5..10].
  4. Choose a Shift [-0.50 .. 0.50]
  5. Press on "Direct Transform" button to decompose one level down.
  6. Press on "Inverse Transform" button to reconstruct one level up.
Toolbar in the image display
pointer_on Get the coordinates and value of a pixel.
info_on Get the maximum, minimum and the mean value of the image.
frame Open a new window containing the image.
zoomin_on Zoom out by a factor 2.
(N/A on Netscape)
zoomout_on Zoom in by a factor 2. (N/A on Netscape)
move Move the zoomed part of the image. (N/A on Netscape)