« Db8 | Db10 »

Wavelet Daubechies 9 (db9)

Properties

Family: Daubechies (db)

Properties: asymmetric, orthogonal, biorthogonal.

Wavelet and scaling functions

  • Daubechies 9 Scaling function

    Scaling function φ

  • Daubechies 9 Wavelet function

    Wavelet function ψ

Coefficients

Show valuesHide values
Decomposition low-pass filter (copy↓)
Daubechies 9 Decomposition low-pass filter
  1. h0 =  0.0000393473
  2. h1 = -0.0002519632
  3. h2 =  0.0002303858
  4. h3 =  0.0018476469
  5. h4 = -0.0042815037
  6. h5 = -0.0047232048
  7. h6 =  0.0223616621
  8. h7 =  0.0002509471
  9. h8 = -0.0676328291
  10. h9 =  0.0307256815
  11. h10 =  0.1485407493
  12. h11 = -0.0968407832
  13. h12 = -0.2932737833
  14. h13 =  0.1331973858
  15. h14 =  0.6572880780
  16. h15 =  0.6048231237
  17. h16 =  0.2438346746
  18. h17 =  0.0380779474
Reconstruction low-pass filter (copy↓)
Daubechies 9 Reconstruction low-pass filter
  1. h'0 =  0.0380779474
  2. h'1 =  0.2438346746
  3. h'2 =  0.6048231237
  4. h'3 =  0.6572880780
  5. h'4 =  0.1331973858
  6. h'5 = -0.2932737833
  7. h'6 = -0.0968407832
  8. h'7 =  0.1485407493
  9. h'8 =  0.0307256815
  10. h'9 = -0.0676328291
  11. h'10 =  0.0002509471
  12. h'11 =  0.0223616621
  13. h'12 = -0.0047232048
  14. h'13 = -0.0042815037
  15. h'14 =  0.0018476469
  16. h'15 =  0.0002303858
  17. h'16 = -0.0002519632
  18. h'17 =  0.0000393473
Decomposition high-pass filter (copy↓)
Daubechies 9 Decomposition high-pass filter
  1. g0 = -0.0380779474
  2. g1 =  0.2438346746
  3. g2 = -0.6048231237
  4. g3 =  0.6572880780
  5. g4 = -0.1331973858
  6. g5 = -0.2932737833
  7. g6 =  0.0968407832
  8. g7 =  0.1485407493
  9. g8 = -0.0307256815
  10. g9 = -0.0676328291
  11. g10 = -0.0002509471
  12. g11 =  0.0223616621
  13. g12 =  0.0047232048
  14. g13 = -0.0042815037
  15. g14 = -0.0018476469
  16. g15 =  0.0002303858
  17. g16 =  0.0002519632
  18. g17 =  0.0000393473
Reconstruction high-pass filter (copy↓)
Daubechies 9 Reconstruction high-pass filter
  1. g'0 =  0.0000393473
  2. g'1 =  0.0002519632
  3. g'2 =  0.0002303858
  4. g'3 = -0.0018476469
  5. g'4 = -0.0042815037
  6. g'5 =  0.0047232048
  7. g'6 =  0.0223616621
  8. g'7 = -0.0002509471
  9. g'8 = -0.0676328291
  10. g'9 = -0.0307256815
  11. g'10 =  0.1485407493
  12. g'11 =  0.0968407832
  13. g'12 = -0.2932737833
  14. g'13 = -0.1331973858
  15. g'14 =  0.6572880780
  16. g'15 = -0.6048231237
  17. g'16 =  0.2438346746
  18. g'17 = -0.0380779474