what is the scaling function on wavelet in the matlab?
3 ビュー (過去 30 日間)
古いコメントを表示
回答 (1 件)
Wayne King
2017 年 6 月 19 日
Hi Mohammad, I'm not sure this question is complete since you just wrote "1" in the body. The scaling function provides the low frequency (DC components) or very long scale representation of the signal (or image). Recall that a wavelet by definition has zero mean which means the Fourier transform at \omega = 0 (or whatever Fourier variable you like to use) is equal to zero. If you want to recover a DC shift in a signal or image, then you need the scaling function.
0 件のコメント
参考
カテゴリ
Help Center および File Exchange で Continuous Wavelet Transforms についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!