how to create image from text file data.?

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Lalit Patil
Lalit Patil 2012-11-22
http://speedy.sh/yCYux/patil142.txt
This is the text file i have generated.. I want to create image from it.. It will be binary image..
clc;
clear;
fileID = fopen('patil142.txt');
C = textscan(fileID, '%f32 %f32');
fclose(fileID);
x=cell2mat(C(:,1));
y=cell2mat(C(:,2));
x=x';
y=y';
I am able to read it only but don't know how to create image..?
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Walter Roberson
Walter Roberson 2012-11-22
The text file you linked to has x running 1 to 480, but y in the range 333 to 340, and has no 0's in it. If you are hitting 0 then either there is a problem in the reading or you are reading different data than you linked to.
Lalit Patil
Lalit Patil 2012-11-22
http://speedy.sh/cdEqJ/patil113.txt
sorry, i forget to upload new text file that contains 0's at somewhere..
scatter(x,y) shows plot and i want image. and the second column contains pixel intensities, so, 0 means nothing will be showed in image..
only positive integer values will be shown in image..

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Image Analyst
Image Analyst 2012-11-22
Try this:
maxRows = max(y);
maxCols = max(x);
binaryImage = false(maxRows, maxCols);
for k = 1 : length(x)
row = int32(y);
col = int32(x);
binaryImage(row, col) = true;
end
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Lalit Patil
Lalit Patil 2012-11-22
编辑：Lalit Patil 2012-11-22
Yes this is the thing which i want.. Now the problem get solved...
Walter Roberson
Walter Roberson 2012-11-22
Which version? The one that skipped those rows?

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