How to use wcompress

The following is stated in the documentation for wcompress: "X can be either a 2-D array containing an indexed image or a 3-D array of uint8 containing a truecolor image. Both the row and column size of the image must be powers of two."

Is there any way the 3-d image or datacube can be of a different type than uint8 and the rows and columns of something different than a number that is a power of two?

Is this possible or do I have to implement something myself?

Answer 1

[Walter Roberson]

The code tests for power of 2, so that cannot be changed.

The code does not test for uint8. In my test with 'wdr' compression, if I did not specify 'bpp', 16 then the compression ran through but the uncompression had values that were maximum 255. In my test with 'wdr' compression when I specified 'bpp' 16, then the compression ran through and I did enough tracing that it looks like it should have worked, but the data structures produced created errors in decompression.

Answer 2

[Abhishek Ballaney]

https://in.mathworks.com/help/wavelet/ref/wcompress.html

[Sivert Bakken]

This isn't really answering the question though

[faten Abushmmala]

is there another function in matlab for compressing 1D data (speech or any signal) that is equivlant for wcompress ?

[Walter Roberson]

Equivalent in what sense? What would it have to do differently than wcompress? There is a complete wavelet toolbox https://www.mathworks.com/help/wavelet/index.html