MATLAB: How to plot graphically a 256 x 256 square matrix in matlab

graphical plotmatrix

I have a matrix of size 256 x 256 which store finger print values obtained in Byte Frequency cross-correlation algorithm.how can i obtain a graphical plot the same in matlab?

Best Answer

imagesc(TheMatrix)

perhaps?

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MATLAB: Is the colormap not working as expected

Up to and including R2014a, colormap was a figure property. With R2014b it started becoming an axes property. You would get the output you observe on R2014a or earlier. (Your earlier questions have not happened to mention which MATLAB you are using)

MATLAB: ６７枚あるtifファイルの256×256の画像を256×256×67の三次元行列にしたいです

下記のようなコードで直接3次元配列に読み込んではいかがでしょうか。

手元に画像がないのでご自身の環境でお試しください。

また、 gray は同名の関数がありますので、変数としては使わないほうが無難です。

fileFolder = fullfile(pwd,'Series1'); % 画像の読込み (67枚の断面画像)
tifFiles = dir(fullfile(fileFolder,'*.tif'));
numfiles = length(tifFiles);
img = imread(tifFiles(1).name);
grayscale = zeros(size(img,1),size(img,2),numfiles);
for k = 2:numfiles
  grayscale(:,:,k) = imread(tifFiles(k).name); 
end

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MATLAB: Is the colormap not working as expected

MATLAB: ６７枚あるtifファ​イルの256×256​の画像を256×25​6×67の三次元行列​にしたいです

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MATLAB: ６７枚あるtifファイルの256×256の画像を256×256×67の三次元行列にしたいです