extendsigroi
Description
extends the signal regions of interest specified in roilimsout
= extendsigroi(roilims
,sl
,sr
)roilims
to the left
by sl
samples and to the right by sr
samples.
Examples
Extend Regions of Interest
Consider a two-column matrix of integers that can represent regions of interest of a signal. Extend the regions of interest by two samples to the left and three samples to the right. extendsigroi
does not extend regions to the left beyond the first sample.
rois = [1 8; 17 20; 27 31; 38 40]; xrois = extendsigroi(rois,2,3)
xrois = 4×2
1 11
15 23
25 34
36 43
Extend Overlapping Regions of Interest
Consider a two-column matrix of integers that can represent overlapping regions of interest of a signal. Extend the regions of interest by two samples to the left and three samples to the right. extendsigroi
does not extend regions to the left beyond the first sample.
rois = [1 10; 17 26; 24 32; 38 40]; xrois = extendsigroi(rois,2,3)
xrois = 4×2
1 13
15 29
22 35
36 43
Input Arguments
roilims
— Region-of-interest limits
two-column matrix of positive integers
Region-of-interest limits, specified as a two-column matrix of positive integers. The
ith row of roilims
contains nondecreasing
indices corresponding to the beginning and end samples of the ith
region of interest of a signal.
Example: [5 8; 12 20; 18 25]
specifies a two-column region-of-interest
matrix with three regions.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
sl
— Number of samples to extend to the left
nonnegative integer
Number of samples to extend to the left, specified as a nonnegative integer.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
sr
— Number of samples to extend to the right
nonnegative integer
Number of samples to extend to the right, specified as a nonnegative integer.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
Output Arguments
roilimsout
— Modified region-of-interest limits
two-column matrix of positive integers
Modified region-of-interest limits, returned as a two-column matrix of positive integers.
Output limits are returned in sorted order using the sortrows
function.
Extended Capabilities
C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.
GPU Arrays
Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.
This function fully supports GPU arrays. For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).
Version History
Introduced in R2020b
See Also
Objects
Functions
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