* scribo/binarization/sauvola_ms.hh: remove tests on window size. * scribo/canvas/integral_browsing.hh: Check window size. --- scribo/ChangeLog | 8 ++++++++ scribo/scribo/binarization/sauvola_ms.hh | 28 ---------------------------- scribo/scribo/canvas/integral_browsing.hh | 19 +++++++++++++++++++ 3 files changed, 27 insertions(+), 28 deletions(-) diff --git a/scribo/ChangeLog b/scribo/ChangeLog index 1c1295b..5d67d59 100644 --- a/scribo/ChangeLog +++ b/scribo/ChangeLog @@ -1,5 +1,13 @@ 2012-08-23 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Make integral browsing canvas robust to large windows. + + * scribo/binarization/sauvola_ms.hh: remove tests on window size. + + * scribo/canvas/integral_browsing.hh: Check window size. + +2012-08-23 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Several small fixes. * scribo/estim/font_color.hh: Fix namespace ambiguities. diff --git a/scribo/scribo/binarization/sauvola_ms.hh b/scribo/scribo/binarization/sauvola_ms.hh index ba58207..5f0f963 100644 --- a/scribo/scribo/binarization/sauvola_ms.hh +++ b/scribo/scribo/binarization/sauvola_ms.hh @@ -169,34 +169,6 @@ namespace scribo w_local_h = w_local, w_local_w = w_local; - //std::cout << "scale " << i << " - w = " << w << " - lambda_min = " << lambda_min << " - lambda_max = " << lambda_max << std::endl; - - // Make sure the window fits in the image domain. - if (w_local_w >= static_cast<const unsigned>(integral_sum_sum_2.ncols())) - { - w_local_w = std::min(integral_sum_sum_2.ncols(), - integral_sum_sum_2.nrows()) - integral_sum_sum_2.border(); - w_local_h = w_local_w; - trace::warning("integral_browsing - Adjusting window width since it" - " was larger than image width."); - } - if (w_local_h >= static_cast<const unsigned>(integral_sum_sum_2.nrows())) - { - w_local_h = std::min(integral_sum_sum_2.nrows(), - integral_sum_sum_2.ncols()) - integral_sum_sum_2.border(); - w_local_w = w_local_h; - trace::warning("integral_browsing - Adjusting window height since it" - " was larger than image height."); - } - - if (! (w_local % 2)) - { - --w_local_w; - ++w_local_h; - } - - //std::cout << "Scale " << i << " - w_h = " << w_local_h << " - w_w = " << w_local_w << " - w = " << w << std::endl; - // 1st pass scribo::binarization::internal::sauvola_ms_functor< image2d<int_u8> > f(sub, K, SCRIBO_DEFAULT_SAUVOLA_R, e_2, i, q); diff --git a/scribo/scribo/canvas/integral_browsing.hh b/scribo/scribo/canvas/integral_browsing.hh index da13fe7..5328a5a 100644 --- a/scribo/scribo/canvas/integral_browsing.hh +++ b/scribo/scribo/canvas/integral_browsing.hh @@ -88,6 +88,25 @@ namespace scribo // mln_precondition((h/2) < ima.nrows()); // mln_precondition((w/2) < ima.ncols()); + // Adjust window size to image. + if (w > (ima.domain().ncols() - ima.border())) + { + w = std::min(ima.domain().ncols(), ima.domain().nrows()) - ima.border(); + if (! (w % 2)) + --w; + trace::warning("integral_browsing - Adjusting window width since it" + " was larger than image height."); + } + if (h > (ima.domain().nrows() - ima.border())) + { + h = std::min(ima.domain().ncols(), ima.domain().nrows()) - ima.border(); + if (! (h % 2)) + --h; + trace::warning("integral_browsing - Adjusting window height since it" + " was larger than image width."); + } + + const int nrows = ima.nrows(), ncols = ima.ncols(), -- 1.7.2.5