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executable file 33 lines (27 sloc) 814 Bytes
% [RES] = clip(IM, MINVALorRANGE, MAXVAL)
%
% Clip values of matrix IM to lie between minVal and maxVal:
% RES = max(min(IM,MAXVAL),MINVAL)
% The first argument can also specify both min and max, as a 2-vector.
% If only one argument is passed, the range defaults to [0,1].
function res = clip(im, minValOrRange, maxVal)
if (exist('minValOrRange') ~= 1)
minVal = 0;
maxVal = 1;
elseif (length(minValOrRange) == 2)
minVal = minValOrRange(1);
maxVal = minValOrRange(2);
elseif (length(minValOrRange) == 1)
minVal = minValOrRange;
if (exist('maxVal') ~= 1)
maxVal=minVal+1;
end
else
error('MINVAL must be a scalar or a 2-vector');
end
if ( maxVal < minVal )
error('MAXVAL should be less than MINVAL');
end
res = im;
res(find(im < minVal)) = minVal;
res(find(im > maxVal)) = maxVal;