0001 function [param_list, warped_points, warped_image, score] = optimise_all_warps_mi(ref_image, ref_points, unwarped_image, unwarped_points, spline_type, placement_method, n_points, verbose, do_plot, subplot_fig, pane, column, image_width, number_of_images, verbose_score, number_of_bins, precision_required)
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0049 [grid, steps] = setup_grid(2, unwarped_image, ref_points, placement_method, n_points);
0050
0051 if (do_plot),
0052 figure(subplot_fig);
0053 subplot(number_of_images, column, pane, 'replace');
0054 plot(unwarped_image);
0055 axis([0 image_width 0 1]);
0056 drawnow;
0057 end
0058
0059 warp_params.green = 'biharmCPS';
0060 param_list = [];
0061 start_image = unwarped_image;
0062 start_points = unwarped_points;
0063 last_score = mi(ref_image, unwarped_image, number_of_bins);
0064 if(strcmp(spline_type,'single_point'))
0065 [params, score] = fminsearch(@eval_mi_cps_warp,zeros(size(grid)),optimset('Display',verbose,'TolX', precision_required),grid,steps,start_points, start_image, ref_image, number_of_bins);
0066 param_list(size(param_list,1)+1).d = params;
0067 [dummy,start_points] = eval_mi_cps_warp(params,grid,steps, start_points, start_image, ref_image, number_of_bins);
0068 start_image = interp1(ref_points,unwarped_image,start_points, 'linear',0);
0069 elseif(strcmp(spline_type,'multi_point'))
0070 warped_grid = grid;
0071 warp_params.green = 'biharmCPS';
0072 last_score = eval_mi_multi_warp(zeros(size(grid)),grid, unwarped_image, unwarped_points, ref_image, ref_points, 20, warp_params, number_of_bins);
0073 [params, score] = fminsearch(@eval_mi_multi_warp,zeros(size(grid)),optimset('Display',verbose,'TolX', precision_required),grid, unwarped_image, unwarped_points, ref_image, ref_points, 20, warp_params, number_of_bins);
0074 param_list(size(param_list,1)+1,:).d = params;
0075 warped_grid = grid + params;
0076 start_points = nrr_trans_1d(start_points, grid, warped_grid, warp_params,[]);
0077 start_image = interp1(unwarped_points,unwarped_image,start_points, 'linear',0);
0078 else
0079 error('Unknown spline type');
0080 end
0081
0082 if (verbose_score == 1),
0083 disp(['Initial score: ',num2str(last_score),' Final score: ', num2str(score), ' Difference: ', num2str(last_score - score)]);
0084 end
0085
0086 warped_points = start_points;
0087 warped_image = start_image;
0088
0089 if (do_plot),
0090 figure(subplot_fig);
0091 subplot(number_of_images, column, pane, 'replace');
0092 plot(warped_image);
0093 axis([0 image_width 0 1]);
0094 title(num2str(score));
0095 drawnow;
0096 end