How to save data as image as one pixel using MATLAB

1 次查看（过去 30 天）
Stephen john
Stephen john 2022-4-6
Hello everyone, i hope you are doing well.
I am going to save the data as image format i have written the following code as one of the answer on MATLAB.
The dataset is Dats.mat file the Original data first row is
  • Original Data.jpg
The Image generated from the data is
  • ImagefromData.jpg
The save is generated same like the data but when i compared the values the first value of the dataset is 173 as shown in
  • FirstValue.PNG
But when i look at the first value of image it is 173.5 and 172.5
  • Firstvalueofimage.PNG
but the value should be only 173
How can i modified this code to save 173 value as 173 pixel value
Can anybody help me in this
labels1000= repelem(eye(1,1),1000,1);
tempdir=mkdir('DATASET1');
classdir=mkdir('DATASET1','OneClass');
dataDirectory = fullfile('C:\Users\DELL\Documents\MATLAB\Examples\R2021b\phased\ModClassificationOfRadarAndCommSignalsExample\NewDataset\DatasetGeneration\DATASET1\SixClass');
disp("Data file directory is " + dataDirectory)
[labelNums,~,labelIdx] = unique(labels1000,'rows');
labelStrs = {'Class'};
%% make the folders
for ii = 1:numel(labelStrs)
labelStr = labelStrs{ii};
if ~isfolder(labelStr)
mkdir(dataDirectory,labelStr);
end
end
%% create grayscale shapes that resemble the data
[numImages, lenImage] = size(Dataset1000);
imSz = 1000; % assuming images are 1000x1000
imbg = false(imSz); % background "color"
imfg = ~imbg(1,1); % forground "color"
imSizeOut=[1000 1000]; % ImageSize
for imNum = 1:numImages
imData = round(Dataset1000(imNum,:)); % get pattern
[~,Y] = meshgrid(1:imSz); % make a grid
% black and white image
BW = imbg;
BW(Y==imData)=imfg;
% resize (from 1000x1000)
BW=imbinarize(imresize(uint8(BW),imSizeOut));
% convert to uint8 (0 255)
im = im2uint8(BW);
%im = flipud(im);
folderName = labelStrs{labelIdx(imNum)};
im_FullFilename = fullfile(dataDirectory,folderName,sprintf('imageclass_%06g.png',imNum));
imwrite(im,im_FullFilename);
end

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Get Started with MATLAB 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by