Module wavelet.wavelets.db20
Daubechies 20 wavelet
Expand source code
""" Daubechies 20 wavelet """
class Daubechies20:
"""
Properties
----------
asymmetric, orthogonal, bi-orthogonal
All values are from http://wavelets.pybytes.com/wavelet/db20/
"""
__name__ = "Daubechies Wavelet 20"
__motherWaveletLength__ = 40 # length of the mother wavelet
__transformWaveletLength__ = 2 # minimum wavelength of input signal
# decomposition filter
# low-pass
decompositionLowFilter = [
-2.998836489615753e-10,
4.05612705554717e-09,
-1.814843248297622e-08,
2.0143220235374613e-10,
2.633924226266962e-07,
-6.847079596993149e-07,
-1.0119940100181473e-06,
7.241248287663791e-06,
-4.376143862182197e-06,
-3.710586183390615e-05,
6.774280828373048e-05,
0.00010153288973669777,
-0.0003851047486990061,
-5.349759844340453e-05,
0.0013925596193045254,
-0.0008315621728772474,
-0.003581494259744107,
0.00442054238676635,
0.0067216273018096935,
-0.013810526137727442,
-0.008789324924555765,
0.03229429953011916,
0.0058746818113949465,
-0.061722899624668884,
0.005632246857685454,
0.10229171917513397,
-0.024716827337521424,
-0.1554587507060453,
0.039850246458519104,
0.22829105082013823,
-0.016727088308801888,
-0.3267868004335376,
-0.13921208801128787,
0.36150229873889705,
0.6104932389378558,
0.4726961853103315,
0.21994211355113222,
0.06342378045900529,
0.010549394624937735,
0.0007799536136659112
]
# high-pass
decompositionHighFilter = [
-0.0007799536136659112,
0.010549394624937735,
-0.06342378045900529,
0.21994211355113222,
-0.4726961853103315,
0.6104932389378558,
-0.36150229873889705,
-0.13921208801128787,
0.3267868004335376,
-0.016727088308801888,
-0.22829105082013823,
0.039850246458519104,
0.1554587507060453,
-0.024716827337521424,
-0.10229171917513397,
0.005632246857685454,
0.061722899624668884,
0.0058746818113949465,
-0.03229429953011916,
-0.008789324924555765,
0.013810526137727442,
0.0067216273018096935,
-0.00442054238676635,
-0.003581494259744107,
0.0008315621728772474,
0.0013925596193045254,
5.349759844340453e-05,
-0.0003851047486990061,
-0.00010153288973669777,
6.774280828373048e-05,
3.710586183390615e-05,
-4.376143862182197e-06,
-7.241248287663791e-06,
-1.0119940100181473e-06,
6.847079596993149e-07,
2.633924226266962e-07,
-2.0143220235374613e-10,
-1.814843248297622e-08,
-4.05612705554717e-09,
-2.998836489615753e-10
]
# reconstruction filters
# low pass
reconstructionLowFilter = [
0.0007799536136659112,
0.010549394624937735,
0.06342378045900529,
0.21994211355113222,
0.4726961853103315,
0.6104932389378558,
0.36150229873889705,
-0.13921208801128787,
-0.3267868004335376,
-0.016727088308801888,
0.22829105082013823,
0.039850246458519104,
-0.1554587507060453,
-0.024716827337521424,
0.10229171917513397,
0.005632246857685454,
-0.061722899624668884,
0.0058746818113949465,
0.03229429953011916,
-0.008789324924555765,
-0.013810526137727442,
0.0067216273018096935,
0.00442054238676635,
-0.003581494259744107,
-0.0008315621728772474,
0.0013925596193045254,
-5.349759844340453e-05,
-0.0003851047486990061,
0.00010153288973669777,
6.774280828373048e-05,
-3.710586183390615e-05,
-4.376143862182197e-06,
7.241248287663791e-06,
-1.0119940100181473e-06,
-6.847079596993149e-07,
2.633924226266962e-07,
2.0143220235374613e-10,
-1.814843248297622e-08,
4.05612705554717e-09,
-2.998836489615753e-10
]
# high-pass
reconstructionHighFilter = [
-2.998836489615753e-10,
-4.05612705554717e-09,
-1.814843248297622e-08,
-2.0143220235374613e-10,
2.633924226266962e-07,
6.847079596993149e-07,
-1.0119940100181473e-06,
-7.241248287663791e-06,
-4.376143862182197e-06,
3.710586183390615e-05,
6.774280828373048e-05,
-0.00010153288973669777,
-0.0003851047486990061,
5.349759844340453e-05,
0.0013925596193045254,
0.0008315621728772474,
-0.003581494259744107,
-0.00442054238676635,
0.0067216273018096935,
0.013810526137727442,
-0.008789324924555765,
-0.03229429953011916,
0.0058746818113949465,
0.061722899624668884,
0.005632246857685454,
-0.10229171917513397,
-0.024716827337521424,
0.1554587507060453,
0.039850246458519104,
-0.22829105082013823,
-0.016727088308801888,
0.3267868004335376,
-0.13921208801128787,
-0.36150229873889705,
0.6104932389378558,
-0.4726961853103315,
0.21994211355113222,
-0.06342378045900529,
0.010549394624937735,
-0.0007799536136659112
]Classes
class Daubechies20-
Properties
asymmetric, orthogonal, bi-orthogonal
All values are from http://wavelets.pybytes.com/wavelet/db20/
Expand source code
class Daubechies20: """ Properties ---------- asymmetric, orthogonal, bi-orthogonal All values are from http://wavelets.pybytes.com/wavelet/db20/ """ __name__ = "Daubechies Wavelet 20" __motherWaveletLength__ = 40 # length of the mother wavelet __transformWaveletLength__ = 2 # minimum wavelength of input signal # decomposition filter # low-pass decompositionLowFilter = [ -2.998836489615753e-10, 4.05612705554717e-09, -1.814843248297622e-08, 2.0143220235374613e-10, 2.633924226266962e-07, -6.847079596993149e-07, -1.0119940100181473e-06, 7.241248287663791e-06, -4.376143862182197e-06, -3.710586183390615e-05, 6.774280828373048e-05, 0.00010153288973669777, -0.0003851047486990061, -5.349759844340453e-05, 0.0013925596193045254, -0.0008315621728772474, -0.003581494259744107, 0.00442054238676635, 0.0067216273018096935, -0.013810526137727442, -0.008789324924555765, 0.03229429953011916, 0.0058746818113949465, -0.061722899624668884, 0.005632246857685454, 0.10229171917513397, -0.024716827337521424, -0.1554587507060453, 0.039850246458519104, 0.22829105082013823, -0.016727088308801888, -0.3267868004335376, -0.13921208801128787, 0.36150229873889705, 0.6104932389378558, 0.4726961853103315, 0.21994211355113222, 0.06342378045900529, 0.010549394624937735, 0.0007799536136659112 ] # high-pass decompositionHighFilter = [ -0.0007799536136659112, 0.010549394624937735, -0.06342378045900529, 0.21994211355113222, -0.4726961853103315, 0.6104932389378558, -0.36150229873889705, -0.13921208801128787, 0.3267868004335376, -0.016727088308801888, -0.22829105082013823, 0.039850246458519104, 0.1554587507060453, -0.024716827337521424, -0.10229171917513397, 0.005632246857685454, 0.061722899624668884, 0.0058746818113949465, -0.03229429953011916, -0.008789324924555765, 0.013810526137727442, 0.0067216273018096935, -0.00442054238676635, -0.003581494259744107, 0.0008315621728772474, 0.0013925596193045254, 5.349759844340453e-05, -0.0003851047486990061, -0.00010153288973669777, 6.774280828373048e-05, 3.710586183390615e-05, -4.376143862182197e-06, -7.241248287663791e-06, -1.0119940100181473e-06, 6.847079596993149e-07, 2.633924226266962e-07, -2.0143220235374613e-10, -1.814843248297622e-08, -4.05612705554717e-09, -2.998836489615753e-10 ] # reconstruction filters # low pass reconstructionLowFilter = [ 0.0007799536136659112, 0.010549394624937735, 0.06342378045900529, 0.21994211355113222, 0.4726961853103315, 0.6104932389378558, 0.36150229873889705, -0.13921208801128787, -0.3267868004335376, -0.016727088308801888, 0.22829105082013823, 0.039850246458519104, -0.1554587507060453, -0.024716827337521424, 0.10229171917513397, 0.005632246857685454, -0.061722899624668884, 0.0058746818113949465, 0.03229429953011916, -0.008789324924555765, -0.013810526137727442, 0.0067216273018096935, 0.00442054238676635, -0.003581494259744107, -0.0008315621728772474, 0.0013925596193045254, -5.349759844340453e-05, -0.0003851047486990061, 0.00010153288973669777, 6.774280828373048e-05, -3.710586183390615e-05, -4.376143862182197e-06, 7.241248287663791e-06, -1.0119940100181473e-06, -6.847079596993149e-07, 2.633924226266962e-07, 2.0143220235374613e-10, -1.814843248297622e-08, 4.05612705554717e-09, -2.998836489615753e-10 ] # high-pass reconstructionHighFilter = [ -2.998836489615753e-10, -4.05612705554717e-09, -1.814843248297622e-08, -2.0143220235374613e-10, 2.633924226266962e-07, 6.847079596993149e-07, -1.0119940100181473e-06, -7.241248287663791e-06, -4.376143862182197e-06, 3.710586183390615e-05, 6.774280828373048e-05, -0.00010153288973669777, -0.0003851047486990061, 5.349759844340453e-05, 0.0013925596193045254, 0.0008315621728772474, -0.003581494259744107, -0.00442054238676635, 0.0067216273018096935, 0.013810526137727442, -0.008789324924555765, -0.03229429953011916, 0.0058746818113949465, 0.061722899624668884, 0.005632246857685454, -0.10229171917513397, -0.024716827337521424, 0.1554587507060453, 0.039850246458519104, -0.22829105082013823, -0.016727088308801888, 0.3267868004335376, -0.13921208801128787, -0.36150229873889705, 0.6104932389378558, -0.4726961853103315, 0.21994211355113222, -0.06342378045900529, 0.010549394624937735, -0.0007799536136659112 ]Class variables
var decompositionHighFiltervar decompositionLowFiltervar reconstructionHighFiltervar reconstructionLowFilter