barton.raw -- Gray-scale reproduction of Barton painting Access barton = ReadImage('Barton'); Size 512 by 512 Gray Levels 256 Source Supplied by Jan-Olov Stromberg, who used it as the example dataset in his article "Image Compression using Franklin Wavelets." In that article he uses orthogonal wavelets defined by recursive filtering to compress this image by factors of 50 to 1. Jan-Olov Stromberg is the original inventor of smooth orthonormal Wavelet bases; see his article in the Zygmund Festschrift
kf.mtsw