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

Hi

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

Answer 1

[Rohit Pappu]

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

[Sina Zinatlou]

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.