3D RGB Image ROI Filter: No Grayscale Conversion Needed!

How can I filter region of interest (ROI) selected in a 3 d array image (RGB) without converting to grayscale?

vidya asked: 2024-01-19 Image Processing and Computer Vision , Image Processing Toolbox , Import, Export, and Conversion

Filter a Region of Interest (ROI) in a 3D RGB image array in MATLAB without grayscale conversion. Learn how to isolate & process your ROI effectively. Get the c

Expert Answer

Kshitij Singh answered . 2025-07-06 08:02:08

#2. Does 3D mean color or volumetric? And what does "not lose properties" mean? A filtered image will have different properties than the input image - at least SOME of them must be different or else the filter didn't do anything. And I have no idea what all that isosurface and patch stuff is for. What does that have to do with filtering color or volumetric images?

Why not just mask your image:

% Mask the image.
maskedRgbImage = bsxfun(@times, rgbImage, cast(mask,class(rgbImage)));

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