How can I first create the mask and apply to the image obtained from the AVIRIS sensor?

I have the .TIFF file image which is 2500 band image. I want to read the image but it is impossible to read such large image. I thought of creating the ROI mask and apply to image and read only the ROI portion of image?

How can I created the ROI mask and apply to an image?

Answer 1

[Milan Bansal]

Hi Meghraj Kc,

As per my understanding you want to know how to create Region of Interest (RoI) mask for a large multiband image as you are not able to read it.

It is possible to read such a large multiband image by using "multibandread" function in MATLAB. Please refer to the example below for reading a multiband image.

filename = 'multibandImage.tif';  % Replace with the actual filename and path
image = multibandread(filename, [height, width, 2500], 'uint16', 0, 'bsq');

Please refer to the below documentation link to learn more about "multibandread" function.

https://www.mathworks.com/help/matlab/ref/multibandread.html

Please refer to the following MATLAB Answer which solves a similar problem.

https://www.mathworks.com/matlabcentral/answers/408975

There are a number of ways to create RoI masks for an image depending upon the shapes, color-range, and use-cases.

Please refer to the following documentation link to learn about different functions for "RoI-Based Processing".

https://www.mathworks.com/help/images/roi-based-processing.html

Hope it helps!