How to save Histogram of Multiple Images

I used this code but the results is unsatisfied :( please help me :(

% Specify the folder where the files live.
myFolder = 'D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\imagesss';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
% if ~isfolder(myFolder)
%   errorMessage = sprintf('Error: The following folder does not exist:\n%s', myFolder);
%   uiwait(warndlg(errorMessage));
%   return;
% end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.JPG'); % Change to whatever pattern you need.
theFiles = dir(filePattern);

for k = 1 : length(theFiles)
  baseFileName = theFiles(k).name;
  fullFileName = fullfile(myFolder, baseFileName);
  methodFile = imread(fullFileName);
  grayscale = rgb2gray(methodFile);
  histogram = imhist(grayscale);%using this for histogram
  currentImageArray = histogram;
  currentImage{k}=currentImageArray;
  
for i = 1 : 1
outputFolder = 'D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\Hasil Histogram Dataset\1';
outputFileName = fullfile(outputFolder, sprintf('Hasil Citra Ground Truth_%d_%d.jpg', k, i));
imwrite(currentImage{k}, outputFileName);
end
end

here the results:

[KALYAN ACHARJYA]

"results is unsatisfied' means?

You want to save histogram plots ??

Answer 1

[KALYAN ACHARJYA]

Images=dir('D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\imagesss*.jpg'); %Database Image folder
%......................[] ^ IS this OK?
outDirectory='D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\Hasil Histogram Dataset\hist_data\'; % To save histograms
%......................^ set valid path "hist_data" folder will create by Matlab itself 
mkdir(outDirectory);
for i=1:length(Images)
ImgName=strcat('D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\imagesss\',Images(i).name);
RGBImage=imread(ImgName);
grayImage=rgb2gray(RGBImage);
imhist(grayImage);
imwrite(gcf,strcat(outDirectory,Images(i).name));
end

[Diah Junaidi]

is it for read and perform multiple images, sir? cause I wanna perform with multiple images

[KALYAN ACHARJYA]

Yes,

Any issue let me know

[Diah Junaidi]

I wanna ask to you sir, what should I do for this error:

Images=dir('D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\imagesss*.jpg');

why should we use .jpg if we wanna perform all images at once from the database folder?

[Diah Junaidi]

I got this error:

Error using imwrite (line 420)

Expected DATA to be one of these types:

numeric, logical

Instead its type was matlab.ui.Figure.

Error in cobaHistogramDataset (line 11)

imwrite(gcf,strcat(outDirectory,Images(i).name));

by using this code:

Images=dir('D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\imagesss\'); %Database Image folder
%......................[] ^ IS this OK?
outDirectory='D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\Hasil Histogram Dataset\1'; % To save histograms
%......................^ set valid path "hist_data" folder will create by Matlab itself 
% mkdir(outDirectory);
for i=1:length(Images)
ImgName=strcat('D:\DIAH\[MATLAB]cv1-fingerspelling-recognition-master\cv1-fingerspelling-recognition-master\imagesss\set1_a.jpg',Images(i).name);
RGBImage=imread(ImgName);
grayImage=rgb2gray(RGBImage);
imhist(grayImage);
imwrite(gcf,strcat(outDirectory,Images(i).name));
end

[KALYAN ACHARJYA]

why should we use .jpg if we wanna perform all images at once from the database folder?

Its depneds on the image format you have (jpg,png etc). Here one by one image call is done, get the histogram and save it.

Next go for next image..!