If you arrange your plots in a regular grid, you don't need all the labels between them. You can move the labels to the edge and read it as a table of images with labels for the rows and columns. That improves both density and readability.
You might not be able to fit all 26 on one page, but split across two pages, it would still be easy enough to read. If you use the tilespacing options for the layout object, you can pack everything tightly.
% size of test image
sz = [10 20];
testdata = rand([sz 26 5]); % 5 sets of fake data
t = 1:26;
setnames = {'apple','banana','cherry','pear','orange'};
tiling = [5 5]; % number of plots per page [rows cols]
fontsize = 10;
htl = tiledlayout(tiling(1),tiling(2));
ht1.TileSpacing = 'none'; % set the tile spacing as tight as you want
for tidx = 1:tiling(1)
% index through the images in each set
for setidx = 1:tiling(2)
% index between sets
nexttile
thisdata = testdata(:,:,tidx,setidx);
imagesc(thisdata)
axis off
% put labels only on the sides
if setidx == 1
ht = text(0,0,sprintf('t = %d',t(tidx)));
set(ht,'horizontalalignment','center','rotation',90,'units','normalized', ...
'position',[-0.2 0.5],'fontweight','bold','fontsize',fontsize);
end
if tidx == 1
ht = text(0,0,setnames{setidx});
set(ht,'horizontalalignment','center','rotation',0,'units','normalized', ...
'position',[0.5 1.15],'fontweight','bold','fontsize',fontsize);
end
end
end
That said, none of those options are present in my version, and they don't work in the forum editor either. I have no means to provide you with a tested solution. Take this as a conceptual suggestion. You'll probably have to move the labels around and play with the font size to get things to fit.
