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How to detect the points of an image outline on Graph Builder

Hello,

 

I have a JMP data table (attached) with coordinates (X/Y columns) and a variable of interest (COLOR) that I use to create a gradient plot.

 

In the background, I add a transparent image to see how my variable of interest is distributed across my image. The problem is that I would like the transparent gradient plot to automatically display only on the points in my image and for the background to remain black. I don't know how to detect the points in the image.

 

Have you ever encountered a similar case?

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
hogi
Level XIII

Re: How to detect the points of an image outline on Graph Builder

load the image as a data table into JMP, e.g. via Image to Table from the Marketplace:

hogi_0-1758919451836.png


select a point in the background, select matching cells - > create subset

hogi_1-1758919548568.png

align the x/y scale with the scale of the other data table.
merge the tables - use the "mask" as a mask (e.g. via exclude)

 

View solution in original post

2 REPLIES 2
hogi
Level XIII

Re: How to detect the points of an image outline on Graph Builder

load the image as a data table into JMP, e.g. via Image to Table from the Marketplace:

hogi_0-1758919451836.png


select a point in the background, select matching cells - > create subset

hogi_1-1758919548568.png

align the x/y scale with the scale of the other data table.
merge the tables - use the "mask" as a mask (e.g. via exclude)

 

Re: How to detect the points of an image outline on Graph Builder

Hello,

 

Thank you it was exactly what i wanted ! 

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