Output of Sift Descriptors

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Albert Rey Ruelan 2017-7-22

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编辑： Albert Rey Ruelan 2017-7-22

Hi! I would like to know what should be the output of a sift descriptor when you are extracting them and saving them to a txt file.

I know that a feature vector consist of an m x 128 matrix. I had already obtained that output but what i am currently in doubt is that are they really the descriptors that i am looking for?

The results of my feature vectors are 0 and 1's only.Are they really only o and 1's?

Attached is my sample vector output

and just a follow up, if i want to save those feature vectors to a text files. What function should i use? Thanks in advance :)

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Image Analyst 2017-7-22

Nothing is attached (yet).

Albert Rey Ruelan 2017-7-22

编辑：Albert Rey Ruelan 2017-7-22

Sorry. I'm kinda new to this matlab forum.I've now attached it.

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Image Processing and Computer Vision Computer Vision Toolbox Feature Detection and Extraction Local Feature Extraction SIFT - Scale Invariant Feature Transform

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