diff options
Diffstat (limited to 'silx/image/bilinear.pyx')
| -rw-r--r-- | silx/image/bilinear.pyx | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/silx/image/bilinear.pyx b/silx/image/bilinear.pyx index 0b072df..7f6354b 100644 --- a/silx/image/bilinear.pyx +++ b/silx/image/bilinear.pyx @@ -268,8 +268,9 @@ cdef class BilinearImage: return numpy.asarray(res).reshape(shape) @cython.boundscheck(False) - def profile_line(self, src, dst, int linewidth=1): - """Return the intensity profile of an image measured along a scan line. + def profile_line(self, src, dst, int linewidth=1, method='mean'): + """Return the mean or sum of intensity profile of an image measured + along a scan line. :param src: The start point of the scan line. :type src: 2-tuple of numeric scalar @@ -278,6 +279,8 @@ cdef class BilinearImage: in contrast to standard numpy indexing. :type dst: 2-tuple of numeric scalar :param int linewidth: Width of the scanline (unit image pixel). + :param str method: 'mean' or 'sum' depending if we want to compute the + mean intensity along the line or the sum. :return: The intensity profile along the scan line. The length of the profile is the ceil of the computed length of the scan line. @@ -313,6 +316,7 @@ cdef class BilinearImage: src_row -= row_width * (linewidth - 1) / 2. src_col -= col_width * (linewidth - 1) / 2. + compute_mean = (method == 'mean') with nogil: for i in range(lengt): sum = 0 @@ -329,7 +333,10 @@ cdef class BilinearImage: cnt = cnt + 1 sum = sum + self.c_funct(new_col, new_row) if cnt: - result[i] += sum / cnt + if compute_mean is True: + result[i] += sum / cnt + else: + result[i] += sum # Ensures the result is exported as numpy array and not memory view. return numpy.asarray(result) |