converting floating point value to integer

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kash 2011-12-14

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https://ww2.mathworks.cn/matlabcentral/answers/23886-converting-floating-point-value-to-integer

I have an image in floating point value,i have to convert it into integer ,can anyone suggest an idea please

I have values for example ,i have taken some pixels from my image,and my whole image pixels values in these ranges only,now i want to convert this floating point into an integer value and i want to read image from those intteger value pixels

0004    0.0004    0.0004    0.0003    0.0003    0.0002
0006    0.0005    0.0005    0.0005    0.0004    0.0003
0008    0.0007    0.0007    0.0007    0.0006    0.0005

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Jan 2011-12-14

And again: What is the range of the input (max value - min value) and what is the wanted range for the output?

kash 2011-12-14

max val=5.2967e-004

min val=4.1036e-012

the output range is 0-255

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采纳的回答

Andrei Bobrov 2011-12-14

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https://ww2.mathworks.cn/matlabcentral/answers/23886-converting-floating-point-value-to-integer#answer_31362

在 MATLAB Online 中打开

A = [ 0.0004    0.0004    0.0004    0.0003    0.0003    0.0002
0.0006    0.0005    0.0005    0.0005    0.0004    0.0003
0.0008    0.0007    0.0007    0.0007    0.0006    0.0005]
[a b c] = unique(A);
B = im2uint8(linspace(0,1,numel(a)))
out = reshape(B(c),size(A))
imagesc(out)

ADD

B = linspace(0,1,numel(a))
out = reshape(B(c),size(A))
image(bsxfun(@plus,out,zeros(1,1,3)))

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kash 2011-12-14

thanks andrei

kash 2011-12-14

Andrei can u tell hoe electromagnetism algorithm works with image processing please

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更多回答（1 个）

Jan 2011-12-14

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/23886-converting-floating-point-value-to-integer#answer_31371

在 MATLAB Online 中打开

A = [0.0004    0.0004    0.0004    0.0003    0.0003    0.0002;
     0.0006    0.0005    0.0005    0.0005    0.0004    0.0003;
     0.0008    0.0007    0.0007    0.0007    0.0006    0.0005];
B = uint8((A - min(A(:))) * (255 / (max(A(:) - min(A(:))))));