How can I convert a graph representation into a density image

Hello!

It is possible to convert a signal representation of a time series like the one shown in the attached picture (left) into a density color image (right)? Red values show the most visited (v,w) points in the representation.

Thank you!

Answer 1

[yanqi liu]

yes，sir，may be use imagesc，and colormap to get pcolor image

if possible，may be upload the data mat file to analysis

Answer 2

[Image Analyst]

You can create a sum image. Every time you visit some (row, column) location, just increment the sum image, like

sumImage = zeros(1000, 1000); % Whatever.
for k = 1 : 1000000
    % Somehow get a new row and column or x,y.  Then
    sumImage(row, column) = sumImage(row, column) + 1;
end
imshow(sumImage, 'Colormap', turbo(256));