Wavelet Transform Details
Conversion to reals.
- Convert gray scale to floating point.
- Convert color to Y U V and then convert each to band to floating point. Compress separately.
After several levels (3-8) of transform we have a matrix of floating point numbers called the wavelet transformed image.
Image compression does not usually use the Haar filters, but uses the Daubechies 9/7 filters, or other wavelet filters.