i want to understand ,how to find out Discrete wavelet transform of image 4 by 4 size using Haar wavelet on paper ?
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$\begingroup$ Please explain a bit more about what you've tried. $\endgroup$– Peter K. ♦Commented Nov 25, 2013 at 16:12
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$\begingroup$ This may give you a start. Haar Wavelet/Transform $\endgroup$– rickhg12hsCommented Nov 25, 2013 at 22:05
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1 Answer
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Discrete Wavelet Transform is applied using Convolution.
Each variant has its own bank of filters which are applied repeatedly.
Sometimes decimation operation is applied between repetition.
A great tutorial about Wavelets in the context of Signal / Image Processing is given in Wavelets Tour.
