void operator()(const Mat& mat, char* data) {
ImageAccessor<RGBPixel> acc;
typename Mat::const_row_iterator row = mat.row_begin();
typename Mat::const_col_iterator col;
char* i = data;
for (; row != mat.row_end(); ++row) {
for (col = row.begin(); col != row.end(); ++col) {
RGBPixel tmp = acc.get(col);
*(i++) = (unsigned char)tmp.red();
*(i++) = (unsigned char)tmp.green();
*(i++) = (unsigned char)tmp.blue();
}
}
}
void operator()(const Mat& mat, char* data) {
char* i = data;
ImageAccessor<T> acc;
typename Mat::const_row_iterator row = mat.row_begin();
typename Mat::const_col_iterator col;
T tmp;
for (; row != mat.row_end(); ++row) {
for (col = row.begin(); col != row.end(); ++col) {
tmp = acc.get(col);
if (tmp > 255)
tmp = 255;
*(i++) = (char)tmp;
*(i++) = (char)tmp;
*(i++) = (char)tmp;
}
}
}
void operator()(const Mat& mat, char* data) {
ImageAccessor<Grey16Pixel> acc;
typename Mat::const_row_iterator row = mat.row_begin();
typename Mat::const_col_iterator col;
char tmp;
char* i = data;
for (; row != mat.row_end(); ++row) {
for (col = row.begin(); col != row.end(); ++col) {
/*
This should correctly map the 16 bit grey values onto
the rgb color space. KWM
*/
tmp = char(acc.get(col));
*(i++) = tmp;
*(i++) = tmp;
*(i++) = tmp;
}
}
}
FloatVector* histogram_real_values(const T& image) {
// The histogram is the size of all of the possible values of
// the pixel type.
size_t l = std::numeric_limits<typename T::value_type>::max() + 1;
FloatVector* values = new FloatVector(l);
// set the list to 0
std::fill(values->begin(), values->end(), 0);
typename T::const_row_iterator row = image.row_begin();
typename T::const_col_iterator col;
ImageAccessor<typename T::value_type> acc;
// create the histogram
for (; row != image.row_end(); ++row)
for (col = row.begin(); col != row.end(); ++col)
(*values)[acc.get(col)]++;
return values;
}
