function symmetryCheck()
load voxel_afterSmooth40.mat voxel
resolution=40;

nx=60;ny=1;nz=20;
unsym_vol = zeros(nx,ny,nz,3);
unsym_fac = zeros(nx,ny,nz,3);
for ix=1:nx
    for iy=1:ny
        for iz=1:nz
VOXEL_ele = voxel((iy-1)*resolution+1:iy*resolution,...
                  (ix-1)*resolution+1:ix*resolution,...        
                  (iz-1)*resolution+1:iz*resolution);
unsym_vol(ix,iy,iz,:)=[sum(abs(VOXEL_ele(1:20,:,:)-VOXEL_ele(40:-1:21,:,:)),'all'),...
sum(abs(VOXEL_ele(:,1:20,:)-VOXEL_ele(:,40:-1:21,:)),'all'),...
sum(abs(VOXEL_ele(:,:,1:20)-VOXEL_ele(:,:,40:-1:21)),'all')]./(40^2*20);

unsym_fac(ix,iy,iz,:)=[sum(abs(VOXEL_ele(1,:,:)-VOXEL_ele(40,:,:)),'all'),...
sum(abs(VOXEL_ele(:,1,:)-VOXEL_ele(:,40,:)),'all'),...
sum(abs(VOXEL_ele(:,:,1)-VOXEL_ele(:,:,40)),'all')]./40^2;
        end
    end
end 
% save symmetryCheck.mat unsym_vol unsym_fac
% figure()
% subplot(311)
% imagesc(squeeze(unsym_vol(:,1,:,2)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
% set(gca,'YDir','normal')
% subplot(312)
% imagesc(squeeze(unsym_vol(:,1,:,3)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
% set(gca,'YDir','normal')
% subplot(313)
% imagesc(squeeze(unsym_vol(:,1,:,1)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
% set(gca,'YDir','normal')
% 
% figure()
% imagesc(squeeze(unsym_vol(:,1,:,2)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
% set(gca,'YDir','normal')
% figure()
% imagesc(squeeze(unsym_vol(:,1,:,3)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
% set(gca,'YDir','normal')
figure()
imagesc(squeeze(unsym_fac(:,1,:,1)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
set(gca,'YDir','normal')
figure()
imagesc(squeeze(unsym_fac(:,1,:,2)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
set(gca,'YDir','normal')
mean(squeeze(unsym_fac(:,1,:,2)),'all')
figure()
imagesc(squeeze(unsym_fac(:,1,:,3)).'); axis equal; axis tight; axis off;colorbar;%caxis([0.5,2])
set(gca,'YDir','normal')
mean(squeeze(unsym_fac(:,1,:,3)),'all')
end