How to save histogram as a png file with the axis values (as it displays in imhist() function ) inside a loop?

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Sheikh Faishal Basher 2018-5-31

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评论： Sheikh Faishal Basher 2018-5-31

Hello, I am new to matlab, I want to save the histogram as it shows in the imhist function. but when I save it, it only saves the spikes (bars), but, does not save the entire histogram (x and y axis are not saved with with the spikes). also I want to create a histogram in each irritation of the loop and save them with different name, (as Hist11, Hist12, hist21,hist22.....etc) the name will contain the row number and column number. Here is the code I have tried already. Thank You.

       imwrite(imhist(temp),'F:\499\Histogram\h1.png');
       saveas(im1,sprintf('HIS%d.png',i));

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Answer 1

KSSV 2018-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/403335-how-to-save-histogram-as-a-png-file-with-the-axis-values-as-it-displays-in-imhist-function-insi#answer_322607

编辑：KSSV 2018-5-31

在 MATLAB Online 中打开

Try:

imhist(temp);
saveas(gcf,sprintf('HIS%d.png',i));

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Sheikh Faishal Basher 2018-5-31

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@Stephen Cobeldick Here is the full error message. Thank you.

   Error using name (line 102)
         Cannot create output file '.\HIS1.png'.
   Error in print (line 85)
          pj = name( pj );
   Error in saveas (line 168)
        print( h, name, ['-d' dev{i}] )
      Error in Histogram (line 66)
            saveas(gcf,sprintf('HIS%d.png',i));

Sheikh Faishal Basher 2018-5-31

thank you. the problem is solved.

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Answer 2

Aditya Salveru 2018-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/403335-how-to-save-histogram-as-a-png-file-with-the-axis-values-as-it-displays-in-imhist-function-insi#answer_322608

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Hi,

You can save the entire histogram using as it shows in the imhist functions using the below code snippet.

saveas(gcf,sprintf('HIS%d.png',i))

Run this snippet in the loop to create multiple histograms and save them.

I am giving an example code with loop to create and save multiple histograms.

x=[1 2 2 4 4 5 5 5];
while(length(x)<15)
imhist(x)
saveas(gcf,sprintf('HIS%d.png',length(x)))
x=[x length(x)];
end

Thank you.

Aditya Salveru.

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Sheikh Faishal Basher 2018-5-31

编辑：Sheikh Faishal Basher 2018-5-31

在 MATLAB Online 中打开

Thank you for your answer. But the code shows error and is not working.

     Error using name (line 102)
Cannot create output file '.\HIS1.png'.
    Error in print (line 85)
        pj = name( pj );
    Error in saveas (line 168)
        print( h, name, ['-d' dev{i}] )
     Error in Histogram (line 66)
        saveas(gcf,sprintf('HIS%d.png',i));