3d plot of an image

how can i get 3d plot of an image

Answer 1

[Image Analyst]

Check this out: http://www.mathworks.com/matlabcentral/fileexchange/29485-meshcanopy

Answer 2

[Image Analyst]

Perhaps you mean surf() or waterfall(), or you could mean scatter3(). Did you look up the 3D visualization section in the help?

[Mahua Nandy(Pal)]

please give me 3-4 line example piece of code how to see 3d visualization of an image using surf()

Answer 3

[Image Analyst]

surf(double(yourImage));

More complete demo:

clc;
clearvars;
close all;
imtool close all;  % Close all imtool figures.
workspace;
format longg;
format compact;
fontSize = 16;

% Read in a standard MATLAB gray scale demo image.
folder = fullfile(matlabroot, '\toolbox\images\imdemos');
baseFileName = 'cameraman.tif';
% Get the full filename, with path prepended.
fullFileName = fullfile(folder, baseFileName);
% Check if file exists.
if ~exist(fullFileName, 'file')
  % File doesn't exist -- didn't find it there.  Check the search path for it.
  fullFileName = baseFileName; % No path this time.
  if ~exist(fullFileName, 'file')
    % Still didn't find it.  Alert user.
    errorMessage = sprintf('Error: %s does not exist in the search path folders.', fullFileName);
    uiwait(warndlg(errorMessage));
    return;
  end
end
grayImage = imread(fullFileName);
% Get the dimensions of the image.  
% numberOfColorBands should be = 1.
[rows columns numberOfColorBands] = size(grayImage);
% Display the original gray scale image.
subplot(2, 2, 1);
imshow(grayImage, []);
title('Original Grayscale Image', 'FontSize', fontSize);
% Enlarge figure to full screen.
set(gcf, 'units','normalized','outerposition',[0 0 1 1]);
% Give a name to the title bar.
set(gcf,'name','Demo by ImageAnalyst','numbertitle','off') 
subplot(2,2,2);
surf(double(grayImage));

[Mahua Nandy(Pal)]

Warning: Matrix dimensions must agree, not rendering mesh Warning: Matrix dimensions must agree, not rendering mesh Warning: Matrix dimensions must agree, not rendering mesh Warning: Matrix dimensions must agree, not rendering mesh

why these are coming with a .jpg gray image? with cameraman.tif it is ok.

Answer 4

[Sean de Wolski]

FEX:sliceomatic