How to generate a derivative of the extracted line profile

[Pantheraxxx]

Hello, 

I created a line profile and mapped it on a graph. Now I have to derive this graph. How do I do that best?

thanks

[Pantheraxxx]

Hello,

i want to get a line profile. But for that I have to enter the coordinates of the image. How and in what form can I enter the coordinates there? Can I get a simple example from you on how to use this module?

thank you

[Pantheraxxx]

it's too hard ???

[GerdW]

Hi Panther,

have you tried to use the derivative function?

[Pantheraxxx]

Yes, but i have no idea how can i connect my Graph with the derivative function.

can you give me some help?

[GerdW]

Hi Panther,

use UnbundleByName to get the line data...

Did you look at the context help when moving the mouse over those wires?

[Pantheraxxx]

ok thank you for this tip UnbundleByName. I used it and connected it. I get three parameters x0 dx and pixelsline. "x0" is always 1, "dx" is always 0 and pixelsline is variable. I connected pixelsline with the derivative. 

and i get a second graph. now is my problem. That the first graph on the right shows a pixel value of 200, but the derived graph on the left shows a value of 30. Do you know why?

thank You

[JensG69]

You calculated the first derivative of that line. Do you know what that means?

The biggest chance between two adjoining data-points seems to about 30, so that's the max value on the derivative graph.

Regards, Jens