If you have a fast connection, a fast machine, and/or patience try
ImageMincer500 is version 5 of an experimental Java applet for image and signal processing using the techniques of the course math 3435, Computational Wavelet and Fractal Image Analysis. The name refers to the quincunx multiresolution fast wavelet transform (qfwt) which uses the lifting scheme to calculate nonseparable wavelet coefficients "in place" producing a transformed output which sometimes reminds one of a minced image.
The web page version allows only the input of a default image which is a color photo of a fruit basket.
If you are interested in a version which runs on your own computer as an application please contact firstname.lastname@example.org.
Signal processing applications are currently disabled in version 5.
Fractal image compression and Multifractal Analysis are also disabled.
Quincunxfwt with thresholding
A demo of image compression with Quincunx fwt, triscanning, and rle.
Triangular scanning of pixels
Full binary tree scanning of the vertices of a binary triangulation
Image range operations: brighten, contrast, histogram.
Image display functions: RGB planes, YCbCr planes, quincunx wavelet interpolation of a low resolution image. FWT reconstruction of a thresholded image.
The current version is an experiment with the the Java Swing components which seem seem to slow down the performance in some places. The components now have an "under construction" appearance. There are few imbellishments and no "look and feel". Parameters are viewed and changed in setup frames which are all derived from the same generic setup frame. There are unused text fields and choice menus whcih may be used or removed later.
For further information contact:
Department of Mathematics
University of Pittsburgh
Pittsburgh, PA 15260
412 624 8375