MATLAB: Following is the error occured during thresholding

thresholding

Following is the error occured in my code. please, can you help me for sorting out this error.

Error using .* Integers can only be combined with integers of the same class, or scalar doubles.

Error in thresholding (line 13) thix1=max(ix,level1.*ones(size(ix)));

Best Answer

Try this:

hix1 = max(ix, uint8(level1).*ones(size(ix), 'uint8'));

or this:

hix1 = uint8(max(double(ix), level1.*ones(size(ix))));

Related Solutions

MATLAB: How to make a function that return smallest unsigned integer class of a matrix

You were closer before in your comment when you had something like this (corrected a bit):

function integ=integerize(A)
integ = 'none'; % Initialize
maxValue=max(A(:));
if maxValue <= intmax('uint8')
  integ='uint8';
elseif maxValue<=intmax('uint16')
  integ='uint16';
elseif maxValue <= intmax('uint32')
  integ='uint32';  
elseif maxValue <= intmax('uint64')
  integ='uint64';
elseif mod(maxValue,1) ~= 0
  integ='NONE';
end
end

You might also want to add a try/catch and functions like isnumeric() to make it more robust.

MATLAB: Floor function for int8

Using your later example,

 idivide(a,4,'floor')

does what you want there. I prefer to make both arguments integers of the same type, so I would probably have written

 idivide(a,int8(4),'floor').

Note that the default option for idivide is 'fix', which might be what you want. Obviously, 'floor' and 'fix' are the same for non-negative quotients. -- Mike

Best Answer

Related Solutions

MATLAB: How to make a function that return smallest unsigned integer class of a matrix

MATLAB: Floor function for int8

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