EIDORS: Electrical Impedance Tomography and Diffuse Optical Tomography Reconstruction Software

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EIDORS display functions and control of colours

Colour Mapping in the image

Specify clim=1.5 for all subsequent display

calc_colours('clim',1.5);
show_slices( img )
% future images still use clim=1.5

Specify clim=1.5 for only this image

img.calc_colours.clim= 1.5;
show_slices( img )
% only 'img' uses clim=1.5

Create a demo image

% Show EIDORS colours $Id: eidors_colours01.m 1535 2008-07-26 15:36:27Z aadler $

% Create sample image
imdl= mk_common_model('a2c2',16);
img= eidors_obj('image','small demo','fwd_model',imdl.fwd_model, ...
                'elem_data', zeros(1,64) );
img.elem_data(1:2)=[1,1];
img.elem_data([14,16])=[-1,-1];
img.elem_data([27,30])=.5*[1,1];
idx= [51:52, 56:-1:53, 57:60, 64:-1:61, 49,50]; % clockwise index elements 
img.elem_data(idx)= linspace(-2,2,16);

img.elem_data = img.elem_data + 10;

Change colour mapping parameters: greylev

% Show EIDORS colours $Id: eidors_colours02.m 1535 2008-07-26 15:36:27Z aadler $
subplot(221); img1= img;

show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours02a.png

img1.calc_colours.greylev= -0.35;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours02b.png

img1.calc_colours.greylev= 0.35;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours02c.png

Figure: greylev values of (from left to right) 1) -.001 default, 2) -.35, 3) +.35,

Change colour mapping parameters: clim

% Show EIDORS colours $Id: eidors_colours03.m 1535 2008-07-26 15:36:27Z aadler $
subplot(221); img1= img;

show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours03a.png

img1.calc_colours.clim= 1;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours03b.png

img1.calc_colours.clim= 0.3;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours03c.png

Figure: clim values of (from left to right) 1) [] default, 2) 1.0, 3) 0.3,

Change colour mapping parameters: sat_adj

% Show EIDORS colours $Id: eidors_colours04.m 1535 2008-07-26 15:36:27Z aadler $
subplot(221); img1= img;

show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours04a.png

img1.calc_colours.sat_adj= 0.99;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours04b.png

img1.calc_colours.sat_adj= 0.8;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours04c.png

Figure: sat_adj values of (from left to right) 1) 0.9 default, 2) 0.90, 3) 0.8,

Change colour mapping parameters: window_range

% Show EIDORS colours $Id: eidors_colours05.m 1535 2008-07-26 15:36:27Z aadler $
subplot(221); img1= img;

show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours05a.png

img1.calc_colours.window_range= 0.90;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours05b.png

img1.calc_colours.window_range= 0.20;
show_fem(img1,1);
axis equal; axis off; print -r75 -dpng eidors_colours05c.png

Figure: window_range values of (from left to right) 1) 0.7 default, 2) 0.9, 3) 0.2,