resampleBands

Resample multispectral data

Since R2025a

Syntax

newmcube = resampleBands(mcube,targetResolution)

newmcube = resampleBands(mcube,targetResolution,method)

Description

newmcube = resampleBands(mcube,targetResolution) resamples the images in each spectral band of the multispectral data mcube, using nearest neighbor interpolation, to a uniform resolution, targetResolution.

newmcube = resampleBands(mcube,targetResolution,method) specifies the interpolation method used in resampling.

Examples

Resample Multispectral Data

Download Landsat 8 multispectral data.

zipfile = "LC08_L1TP_113082_20211206_20211215_02_T1.zip";
landsat8Data_url = "https://ssd.mathworks.com/supportfiles/image/data/" + zipfile;
hyper.internal.downloadLandsatDataset(landsat8Data_url,zipfile)
filepath = fullfile("LC08_L1TP_113082_20211206_20211215_02_T1","LC08_L1TP_113082_20211206_20211215_02_T1_MTL.txt");

Read a multispectral image into the workspace, and inspect the resolution of all spectral bands.

mcube = immulticube(filepath);
mcube.BandResolution

ans = 11×1

    30
    30
    30
    30
    30
    30
    30
    15
    30
    30
    30
      ⋮

Resample the multispectral data to a uniform resolution. Inspect the resolution of the spectral bands of the resampled data.

newmcube = resampleBands(mcube,30);
newmcube.BandResolution

ans = 11×1

    30
    30
    30
    30
    30
    30
    30
    30
    30
    30
    30
      ⋮

Input Arguments

mcube — Input multispectral data

multicube object

Input multispectral data, specified as a multicube object.

targetResolution — Target resolution

positive integer

Target resolution, specified as a positive integer. The function resamples all spectral bands of the input multispectral data to this resolution.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

method — Interpolation method

"nearest" (default) | "bilinear" | "cubic"

Interpolation method, specified as one of these values.

• "nearest" — Nearest neighbor interpolation

• "bilinear" — Bilinear interpolation

• "cubic" — Cubic interpolation

Data Types: char | string

Output Arguments

newmcube — Resampled multispectral data

multicube object

Resampled multispectral data, returned as a multicube object with uniform data resolution across all spectral bands.

Version History

Introduced in R2025a