Dear all,
I am confused with the even and odd components in schrowavelet. During the
processing of the inverse wavelet transform, the even rows are assigned to
data1 and odd rows to data2 as below,
for(i=0;i<height;i+=2){
data1 = OFFSET(data,i*stride);
data2 = OFFSET(data,(i+1)*stride);
And according to the comment written in schrowavelet.c, the
* @hi: array of even components / high subband components
* @lo: array of odd components / low subband components
I suppose data1 consists of high subband component (cause they are even) and
data2 consists of low subband component (cause they are odd). However, when I
extracted the data1 and I found out that data1 consists of low subband
components. If data1 consists of odd component, then would there be a problem
to the inverse lifting wavelet? Can someone please correct me?
Thank you
Regards,
Yvonne
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