convert a pixel intensity of gray-scale image to 1D type Signal

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I'm going to use a 1D wavelet for controlling the surface quality according to the taken images of the surface of the product. then I try to find the pixel intensity along the scanned line. but the input for the 1D wavelet should be the 1D signal.
I used "improfile" function to find a pixel intensity on a specific scanned line. then I have an intensity-distance profile.
now my question is: how can I convert this profile to a 1D signal inorder to use in wavelet?
Thank you

Accepted Answer

Rohit Pappu
Rohit Pappu on 28 Dec 2020
The algorithm for converting RGB values to Intensity values is
This algorithm converts a n-by-1-by-3 vector into a n-by-1 vector
Additional Information about the color space conversion algorithm can be found here
  1 Comment
Sina Zinatlou
Sina Zinatlou on 28 Dec 2020
Dear Rohit
Thanks for your reply
Are you suggesting to use this method for getting intensity instead of my method?
Because I already have the intensity results and my problem is converting the pixel intensity to a 1D signal.

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