thresh

Return a matrix mat thresholded.

Syntax

[out] = thresh(mat,level)

Description

Return the matrix 'mat' thresholded by 'level' percent. Notice that mat can be also a YAWtb object. In this case, it this the data field which is thresholded.

Input Data

mat

[MATRIX|YAWTB OBJECT]: the input matrix or a yawtb object (a struct with 'data' field);

level

[REAL]: the level of thresholding in percent (that is 0<level<100);

mode

[STRING]: the mode of thresholding. This mode can be 'abs' (default), 'angle', 'real' or 'imag' corresponding respectively to the thresholding of the absolute value, the argument, the real or the imaginary part of mat.

Output Data

out

[MATRIX]: the thresholded matrix.

Example(s)

>> mat = rand(100,100);
>> nmat = thresh(mat,0.5);
>> figure; imagesc(mat);
>> figure; imagesc(nmat);

References

See Also

Location

tools/misc/thresh.m