I am trying to use PCA, but it gives memory access violation error. Here is my sample code.
Code:
int main(...)
{
.................
vector<float>input_array;
for(i=0;i<number_of_lines;i++)
{
for(j=0;j<feature_vector_size;j++)
{
input_array.push_back(read_feature[i][j]);
}
Mat input_feature_vector(input_array);
Mat projection_result;
PCA pca(input_feature_vector,Mat(),CV_PCA_DATA_AS_ROW, 0);/////error memory access
pca.project(input_feature_vector,projection_result);
for(k=0;k<feature_vector_size;k++)
{
fprintf(pca_output_file,"%lf ",projection_result.at <float>(k,0));
}
fprintf(pca_output_file,"\n");
input_array.clear ();
}
.............
}
