MATLAB: Writing images superimposed with coloured boundaries

imwrite

Is it possible to write images on which I've superimposed boundaries into jpg files.If so how? When I tried just the binary image is written to the file. Thanx in Advance.

Best Answer

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_save_my_figure.2C_axes.2C_or_image.3F_I.27m_having_trouble_with_the_built_in_MATLAB_functions.

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MATLAB: How to project an image stack in time dimension

It should be as simple as:

%%I just do this for all files in the same directory, you'll have to fix file-finding...
fNames = dir('*.tif');
totD = 0;
for iFiles = 1:numel(fNames)
  imageD1 = imread(fNames(i1).name);
  imageD1 = double(imageD1);
  totD = totD + imageD1;
end

HTH

MATLAB: Superimpose a coloured Marker on a tiff image

You got (the very badly named) ii and jj reversed. find() returns [rows, columns] which is [y, x]. You plotted ii,jj which is y,x, not x,y like you incorrectly assumed, so you're plotting the transpose. Don't worry, confusing row,column with x,y is a very very common mistake. Try this:

[rows, columns] = find(IM>4000);
plot(columns, rows, 'ro');

Or better yet, just create an image with red pixels instead of plotting circles in the overlay.

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Related Solutions

MATLAB: How to project an image stack in time dimension

MATLAB: Superimpose a coloured Marker on a tiff image

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