[Olena-patches] olena-2.0-34-g2f5a09b Add new convergence test

--- milena/mln/inpainting/lpde.hh | 41 ++++++++++++++++++++++++++++++----------- 1 files changed, 30 insertions(+), 11 deletions(-) diff --git a/milena/mln/inpainting/lpde.hh b/milena/mln/inpainting/lpde.hh index 77b656e..5f34d83 100644 --- a/milena/mln/inpainting/lpde.hh +++ b/milena/mln/inpainting/lpde.hh @@ -24,6 +24,7 @@ #include <mln/core/alias/vec2d.hh> #include <mln/inpainting/derivative_kernels.hh> +#include <mln/inpainting/fast_isotropic_diffusion.hh> #include <mln/core/concept/accumulator.hh> @@ -47,7 +48,7 @@ namespace mln template <template <typename> class I, typename T> void operator()(I<T>& src, - I<bool>& mask); + const I<bool>& mask); void set(const std::vector<float_type>& w); @@ -80,7 +81,7 @@ namespace mln T b) { T c; - // static loop unrolling ? + for (unsigned i = 0; i < mln_dim(T); ++i) c[i] = a[i] * b[i]; @@ -100,7 +101,8 @@ namespace mln I& u_next, //const I& f, const std::vector<lpde::float_type>& w, - const M& mask) + const M& mask, + lpde::float_type& max_diff_norm) { typedef lpde::float_type float_type; typedef mln_value(I) T; @@ -188,7 +190,13 @@ namespace mln + 2 * components_product(components_product(p_x, p_y), p_xy) + components_product(p_y2, p_yy)); - sse += norm::l2(old - p_next.val()); + float_type diff = norm::l2(old - p_next.val()); + sse += diff; + + if (diff > max_diff_norm) + { + max_diff_norm = diff; + } } } @@ -197,8 +205,11 @@ namespace mln template <template <typename> class I, typename T> void lpde::operator()(I<T>& src, - I<bool>& mask) + const I<bool>& mask) { + //fast_isotropic_diffusion fast_iso; + //fast_iso(src, mask); + //const I<T> f(src); I<T>& u_ = src; @@ -214,18 +225,26 @@ namespace mln float_type sse_old = std::numeric_limits<float_type>::max(); + float_type max_diff_norm = std::numeric_limits<float_type>::max(); + + float_type min_max_diff_norm = std::numeric_limits<float_type>::max(); + float t = 0; - while (t < this->t_f && sse < sse_old && !std::isnan(sse)) + while (t < this->t_f + && max_diff_norm > CONVERGENCE_THRESHOLD + //&& sse < sse_old + && !std::isnan(sse)) { + max_diff_norm = 0; + sse_old = sse; - sse = diffuse(*u, *u_next, /* f, */ w, mask); + sse = diffuse(*u, *u_next, /* f, */ w, mask, max_diff_norm); - I<T>* swap = u; - u = u_next; - u_next = swap; + if (max_diff_norm < min_max_diff_norm) + min_max_diff_norm = max_diff_norm; - //std::cout << "sse = " << sse << std::endl; + std::swap(u, u_next); t += this->dt; } -- 1.7.2.5