How to combine image patches into single image.

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Anu G
Anu G 2020-12-18
评论： Image Analyst 2020-12-21
  3 个评论
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Rik
Rik 2020-12-18
These look like subplots. Do you have the original images used for each subimage?

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Image Analyst
Image Analyst 2020-12-18
If that image is REALLY your image like you say, and you didn't just show us a figure window using subplot(), then you can do this:
% Demo by Image Analyst, December, 2020.
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
clearvars;
workspace; % Make sure the workspace panel is showing.
format long g;
format compact;
fontSize = 16;
fprintf('Beginning to run %s.m ...\n', mfilename);
%-----------------------------------------------------------------------------------------------------------------------------------
% Read in image.
folder = [];
baseFileName = 'image.png';
fullFileName = fullfile(folder, baseFileName);
% Check if file exists.
if ~exist(fullFileName, 'file')
% The file doesn't exist -- didn't find it there in that folder.
% Check the entire search path (other folders) for the file by stripping off the folder.
fullFileNameOnSearchPath = baseFileName; % No path this time.
if ~exist(fullFileNameOnSearchPath, '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
rgbImage = imread(fullFileName);
[rows, columns, numberOfColorChannels] = size(rgbImage)
% Display the test image full size.
subplot(2, 2, 1);
imshow(rgbImage, []);
axis('on', 'image');
caption = sprintf('Original Image : "%s"', baseFileName);
title(caption, 'FontSize', fontSize, 'Interpreter', 'None');
drawnow;
hp = impixelinfo(); % Set up status line to see values when you mouse over the image.
% Set up figure properties:
% Enlarge figure to full screen.
hFig1 = gcf;
hFig1.Units = 'Normalized';
hFig1.WindowState = 'maximized';
% Get rid of tool bar and pulldown menus that are along top of figure.
% set(gcf, 'Toolbar', 'none', 'Menu', 'none');
% Give a name to the title bar.
hFig1.Name = 'Demo by Image Analyst';
% Mask to find the black part on the left.
[r, g, b] = imsplit(rgbImage);
mask = (r == 240) & (g == 240) & (b == 240);
% Display the image.
subplot(2, 2, 2);
imshow(mask, []);
axis('on', 'image');
title('Mask Image', 'FontSize', fontSize, 'Interpreter', 'None');
drawnow;
% Find columns that are all 1.
columnsToDelete = all(mask, 1);
% Find rows that are all 1.
rowsToDelete = all(mask, 2);
% Delete columns
r(:, columnsToDelete) = [];
g(:, columnsToDelete) = [];
b(:, columnsToDelete) = [];
% Delete columns
r(rowsToDelete, :) = [];
g(rowsToDelete, :) = [];
b(rowsToDelete, :) = [];
% Rebuild rgbImage from separate color channels.
rgbImage = cat(3, r, g, b);
subplot(2, 2, 3);
imshow(rgbImage, []);
axis('on', 'image');
title('Final Image', 'FontSize', fontSize, 'Interpreter', 'None');
fprintf('Done running %s.m ...\n', mfilename);
  1 个评论
Image Analyst
Image Analyst 2020-12-21
Not until you add comments - a LOT of them. It would take me hours to figure out what the code above does without comments. Plus, it's not even properly indented (control-a, control-i in MATLAB). When one adds comments, one often discovers the source/cause of the error. In the meantime, or if you refuse to add comments, see the link below:
Debugging in MATLAB | Doug's MATLAB Video Tutorials

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