# compare pixel values to each other? Is ther afunction in Matlab that can analyze the composition of an image as a function of distance?

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Neo il 15 Dic 2022
Commentato: Image Analyst il 6 Gen 2023
I am interested in looking at how the image changes over a distance within the image, any recommendations?
Thanks!
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Neo il 21 Dic 2022
Spostato: Rena Berman il 22 Dic 2022
It’s not a cell it’s just an example because I’m still trying to identify the image but yes if it’s a cell I want to know the size area and density of the cells in one region and how they change over the length of the image.
Image Analyst il 22 Dic 2022
If you have any more questions, then attach your image and code to read it in with the paperclip icon after you read this:
And somehow indicate, in a separate image, the things in the image you'd like to use in computations.

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### Risposta accettata

Image Analyst il 22 Dic 2022
That pretty much explains the basics. You can probably adapt it to your particular image.
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Neo il 6 Gen 2023
@Image Analyst is the drawpoint program made to address very small and hard to see regions of interests?
Image Analyst il 6 Gen 2023
No, drawpoints is for situations where you need to indicate single points/pixels on an image. drawrectangle and drawpolygon are for when you need to draw 2-D regions.

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### Più risposte (1)

Walter Roberson il 21 Dic 2022
The answer to your question is NO, there is no MATLAB function to analyze the composition of an image as a function of distance.
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Neo il 29 Dic 2022
Yes I think that would be helpful. Just to be safe how would I perform background substraction and also masking to get rid of other specs in the image that I might not be interested in for the future.
Image Analyst il 29 Dic 2022
See attached seminar on background correction, color correction, and color calibration. I've just updated some slides from what I've posted in the past years..

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