diff options
Diffstat (limited to 'src/Stitch.cxx')
| -rw-r--r-- | src/Stitch.cxx | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/src/Stitch.cxx b/src/Stitch.cxx index f0f7236..d59fc87 100644 --- a/src/Stitch.cxx +++ b/src/Stitch.cxx @@ -34,8 +34,10 @@ Stitch::Stitch() { merged_image = NULL; num_pics = 0; - V1 = 0.0; - V2 = 0.0; + V[0] = 0.0; + V[1] = 0.0; + V[2] = 0.0; + V[3] = 0.0; } Stitch::~Stitch() { @@ -237,7 +239,7 @@ Stitch::color_calib(GipfelWidget::sample_mode_t m, double Stitch::vignetting_parameter(int pic, double a_view, double a_nick) { - return pow(cos(gipf[pic]->get_angle_off(a_view, a_nick)), 4.0); + return 1.0/pow(cos(gipf[pic]->get_angle_off(a_view, a_nick)), 4.0); } int @@ -257,7 +259,7 @@ Stitch::vignette_calib(GipfelWidget::sample_mode_t m, int max_samples = 20000 * 3, n_samples = 0; int ret; - int n_vars = 2; + int n_vars = 1; gsl_matrix *X, *cov; gsl_vector *yv, *c; double chisq; @@ -307,10 +309,7 @@ Stitch::vignette_calib(GipfelWidget::sample_mode_t m, double a2 = vignetting_parameter(p2, a_view, a_nick); for (int l = 0; l<3; l++) { - gsl_matrix_set(X, n_samples, 0, c1d[l] * a1); - gsl_matrix_set(X, n_samples, 1, c1d[l] * a1 * a1); - gsl_matrix_set(X, n_samples, 0, -c2d[l] * a2); - gsl_matrix_set(X, n_samples, 1, -c2d[l] * a2 * a2); + gsl_matrix_set(X, n_samples, 0, a1 * c1d[l] - a2 * c2d[l]); gsl_vector_set(yv, n_samples, c2d[l] - c1d[l]); n_samples++; @@ -348,18 +347,19 @@ Stitch::vignette_calib(GipfelWidget::sample_mode_t m, ret = gsl_multifit_linear (X, yv, c, cov, &chisq, work); gsl_multifit_linear_free (work); - V1 = gsl_vector_get(c, 0); - V2 = gsl_vector_get(c, 1); - fprintf(stderr, "==> V1 %f V2 %f\n", V1, V2); - + for (int i=0; i < n_vars; i++) { + V[i] = gsl_vector_get(c, i); + fprintf(stderr, "==> V[i] %f\n", V[i]); + } + return 0; } int Stitch::color_correct(int c, double a, int pic, int color) { double cd = (double) c; - - cd = cd * color_adjust[pic][color] * (1.0 + V1 * a + V2 * a * a); + + cd = cd * color_adjust[pic][color] * a; return MAX(MIN((int) rint(cd), 65025), 0); } |