Two Dimension Inverse Discrete Fast Wavelet Transform
X=idwt2(CA,CH,CV,CD,wname,[S]) X=idwt2(CA,CH,CV,CD,Lo_R,Hi_R,[S])
idwt2 is for two dimension inverse discrete fast wavelet transform. Coefficent could be void vector as '[]' for either of CA, CH, CV or CD.
x=rand(100,100); [CA,CH,CV,CD]=dwt2(x,'db2','mode','asymh'); x0=idwt2(CA,CH,CV,CD,'db2',[100 100]); | ![]() | ![]() |
Roger Liu and Isaac Zhi