MATLAB: Hi, i have an image that contain noise which i have extracted from another image, i want to write the noisy pixel values into a separate .txt file, can anyone help me out with it please

image noiseimage processingImage Processing Toolbox

Best Answer

What does that mean??? Do you want a CSV file with x, y, gray level? Or row, column, gray level? How are you defining which ones are the noise pixels? Since you've already extracted this image from another image can we assume that every pixel in here is considered noise? So if it's not zero, it's noise?

Did you try find() and csvwrite()?

[rows, columns, grayLevels] = find(grayImage);
data = [rows(:), columns(:), grayLevels(:)]; % Stitch together into a matrix, each pixel on one row.
csvwrite(filename, data);

Related Solutions

MATLAB: Sequence of image processing using the same background

See the FAQ for code samples: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Inside the loop, create the new background image filename and read it in with imread(). Then read in the test image and use both of them to do your analysis.

MATLAB: Find the histogram of the image(cameraman)without using the matlab built-in functions for histogram calculations.compare your result with the with those obtained using the functions imhist().display the input image,the two histograms-(yours and mat

%By Marwa Ahmeid
function [y]=myimhist(img)
[r,c]=size(img);
y=zeros(1,256);
for i=1:r
 for j=1:c
    z=img(i,j);
   y(z+1)=y(z+1)+1;
end
end

Best Answer

Related Solutions

MATLAB: Sequence of image processing using the same background

MATLAB: Find the histogram of the image(cameraman)without using the matlab built-in functions for histogram calculations.compare your result with the with those obtained using the functions imhist().display the input image,the two histograms-(yours and mat

Related Question