Get pixel coordinates of an image

[tomsze]

I cannot find a convenient function to get x,y coordinate of a thresholded image pixel (255).

Do I have to convert the image to array and then loop through all pixels to get the coordinates?

[udka · Accepted solution]

Check bounding rectangle of particle measurements : https://zone.ni.com/reference/en-XX/help/370281AC-01/nivisionconcepts/particle_measurements/

[tomsze]

Oh~ I mean I want to get all pixels(255) 's X,Y

[udka]

So you want all pixel location which has value 255?
- I don't understand why such a need, maybe if you explain full picture of what you are trying to do there could be some other means.

[AmitShachaf]

Did you look at the result of IMAQ Particle Analysis VI?

Should be in the measurements from this VI.

[tomsze]

I want to develop some new algorithms base on the coordinates first.

(Sorry I kept pressing wrong the solution button)

[tomsze]

There is no particles 's all xy in IMAQ Particle Analysis.

[udka]

Imaq particle analysis report returns array of binary particle measurements which includes bounding rectangle of particle.
- give an example of what you are trying to do, so that it will be easier to suggest.

[tomsze]

For example,I want to compute the distances from the boundaries of binary particles.

[udka]

Particle analysis report gives the array of bounding box of particles. Once you have it you can get point to point distances between all particles.