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POWavelet transform in openCV
 

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    <p>did someone tried to implement DWT in opencv or in C++? I saw older posts on this subject and i didn't find them useful for me, because I need a approximation coefficient and details as a result of wavelet transformation.</p> <p>I tried to add this (<a href="http://wavelet2d.sourceforge.net/" rel="noreferrer">http://wavelet2d.sourceforge.net/</a>) to my project but it's not working as well as planned.</p> <p>And this is to simple, because as a result parameters i need approximation coefficient and details:</p> <pre><code>void haar1(float *vec, int n, int w) { int i=0; float *vecp = new float[n]; for(i=0;i&lt;n;i++) vecp[i] = 0; w/=2; for(i=0;i&lt;w;i++) { vecp[i] = (vec[2*i] + vec[2*i+1])/sqrt(2.0); vecp[i+w] = (vec[2*i] - vec[2*i+1])/sqrt(2.0); } for(i=0;i&lt;(w*2);i++) vec[i] = vecp[i]; delete [] vecp; } void haar2(float **matrix, int rows, int cols) { float *temp_row = new float[cols]; float *temp_col = new float[rows]; int i=0,j=0; int w = cols, h=rows; while(w&gt;1 || h&gt;1) { if(w&gt;1) { for(i=0;i&lt;h;i++) { for(j=0;j&lt;cols;j++) temp_row[j] = matrix[i][j]; haar1(temp_row,cols,w); for(j=0;j&lt;cols;j++) matrix[i][j] = temp_row[j]; } } if(h&gt;1) { for(i=0;i&lt;w;i++) { for(j=0;j&lt;rows;j++) temp_col[j] = matrix[j][i]; haar1(temp_col, rows, h); for(j=0;j&lt;rows;j++) matrix[j][i] = temp_col[j]; } } if(w&gt;1) w/=2; if(h&gt;1) h/=2; } delete [] temp_row; delete [] temp_col; } </code></pre> <p>So can someone help me find dwt implemented in C++ or point me how to extract from above code coefficients. Thanks</p>
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