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mayflower12/image_ascii.m

Last active June 7, 2018 18:35
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grid preprocess for counter current spontaneous imbibition test case
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image_ascii.m
IMG = imread('original_from_online.jpeg'); % image data
L = im2bw(IMG); % image data to logical data
I = int8(L); % convert to 8 bit integer
dlmwrite('spontaneous.dat', I,' ') % write ascii file, using space(' ') as delimeter
% open data.dat to view it
load spontaneous.dat
B=spontaneous;
finalmatrix=B(:, 2:577);
dlmwrite('cut_spontaneous.dat',finalmatrix); % cut 577 by 1 to 576 in order to be divided by 24
finalfinalmatrix=finalmatrix'; % swap x and y of the matrix
dlmwrite('cut_and_inverted_spontaneous.dat',finalfinalmatrix);
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This method leads to a inverted geometry. Do not use.

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