WPC1COMP2 --- COMPress a 2D seismic section trace-by-trace using Wavelet Packets wpc1comp2 < stdin n1= [optional parameters ] > stdout Required Parameters: n1= number of samples in each trace Optional Parameters: error=0.01 relative RMS allowed in compress ", Notes: This program is used to compress a 2D section using 1D method. It is not a true 2D compression algorithm, since the later diretion is not compressed at all. It can be used in situations where random accessing of each trace is desirable, or when there are very few traces and normal 2D compression algorithm will not compress. The parameter error is used control the allowable compression error, and thus the compression ratio. The larger the error, the more the more compression you can get. The amount of error depends on the type of data and the application of the compression. From my experience, error=0.01 is a safe choice even when the compressed data are used for further processing. For some other applications, it may be set higher to achieve larger compression. ", Caveats: For the current implementation, the compressed data themselves are NOT portable, i.e., the data compressed on one platform might not be recognizable on another.