Error While Saving the Raw data into Binary Image.

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Stephen john 2022-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/1828773-error-while-saving-the-raw-data-into-binary-image

评论： Walter Roberson 2022-10-18

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Hello Everyone, I hope you are doing well. I have the code which make the data into Image format.

But the main issue with this code is that, When the same values of data comes it gives the error here is the error.

As i attached the 2 dataset below. The code works fine on dataset2.mat

While when we run it into dataset1.mat it gives the error.

Error using matlab.internal.math.interp1

Sample points must be unique.

Error in interp1 (line 188)

VqLite = matlab.internal.math.interp1(X,V,method,method,Xqcol);

The following is the code which i used

[numImages, lenImage] = size(Dataset1000);
                            % ImageSize
for imNum = 1:numImages        
    imData = Dataset1000(imNum,:);  % get pattern
    
    dataset=imData;
    x=1:numel(dataset);%this is what you did implictly
    y=dataset;
    resolution=1000;
    X=linspace(min(x), max(x) ,resolution);
    Y=linspace(min(y), max(y) ,resolution);
    % determine index in X of each x, likewise for y (note that the coordinates
    % are flipped for the y-direction in images).
    ind_x=interp1(X,  1:numel(X) ,x,'nearest');
    ind_y=interp1(Y,numel(Y):-1:1,y,'nearest');
    %compute linear index
    ind=sub2ind([resolution resolution],ind_y,ind_x);
    % create the image
    IM=zeros(resolution,resolution);
    IM(ind)=1;
    % Since you apparently want a dilation, apply it before displaying the
    % image.
    SE=strel('disk',2);
    im=imdilate(IM,SE);
end