How to extract multispectral data using hypercube in matlab?

Now I am using hypercube function as follows

img = hypercube(img_file.name);

red = img(:,:,2); % red band

rededge1 = img(:,:,3); % rededge1 band

rededge2 = img(:,:,4); % rededge2 band

rededge3 = img(:,:,5); % rededge3 band

nir = img(:,:,6); % near infrared band

it still gives following errors.

>> ds_indices_caf

img_path = 'C:\Data\'

20240129_MAWANA_SUBSET.img

hypercube with properties:

DataCube: "[3915x3677x7 uint16]"

Wavelength: [7×1 double]

Metadata: [1×1 struct]

Index in position 3 exceeds array bounds. Index must not exceed 1.

Error in ds_indices_caf (line 25)

red = img(:,:,2); % red band

I would really appreciate the kind cooperation in helping me out to fix this error.

Dave

Answer 1

[Manasa Singam]

Here the variable "img" is hypercube object. The data is present in DataCube property.

Access the data using this command: red = img.DataCube(:,:,2);