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GiftofGod

Germany
4 Posts
Posted - 11/18/2021 :  08:39:06 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin):
Operating System:

help with obtaining the matrix from an image e.g. a tif image document.

snowli

USA
1400 Posts
Posted - 11/18/2021 :  08:52:43 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Which version are you using?

Thanks, Snow
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YimingChen

1630 Posts
Posted - 11/18/2021 :  09:18:35 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
You can go to menu Data -> Import From File -> Image to Matrix... To view the data in the matrix, you can select menu View -> Data Mode..

James
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GiftofGod

Germany
4 Posts
Posted - 11/18/2021 :  09:29:12 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
quote:
Originally posted by snowli

Which version are you using?

Thanks, Snow


I use OriginPro 2022
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GiftofGod

Germany
4 Posts
Posted - 11/18/2021 :  09:48:48 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
quote:
Originally posted by YimingChen

You can go to menu Data -> Import From File -> Image to Matrix... To view the data in the matrix, you can select menu View -> Data Mode..

James


Thanks for your response. Kindly find attached the image.

I obtained the ROI from my initial image, got my matrix data, and made a profile plot also. I will like to manipulate my y-axis i.e. instead of the intensity distribution, I will like to obtain the center of mass. against the pixel value on the x-axis.
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YimingChen

1630 Posts
Posted - 11/18/2021 :  2:25:08 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
You mean the peak position along y axis for each x value?

James
Edited by - YimingChen on 11/18/2021 2:25:29 PM
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GiftofGod

Germany
4 Posts
Posted - 11/22/2021 :  02:27:26 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
quote:
Originally posted by YimingChen

You mean the peak position along y axis for each x value?

James


Yes
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YimingChen

1630 Posts
Posted - 11/22/2021 :  1:58:15 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I don't see a direct way, here is one possible solution.
1. Convert Matrix to Worksheet. With the matrix activated, select from menu Matrix:Convert to Worksheet.... Make the following settings and click OK. You should get the matrix data in the worksheet with X, Y values.


2. Calculate the peak position for each x. Click the column header name Comments and click the button Insert User Parameter in the mini toolbar. Enter the formula =table(This, col(A), max(This)) and click OK. The formula returns the peak position for the spectrum of each x value.


3. Plot it out. Copy the Peak Position vs X data, and Past Transpose to a new worksheet. Organize the data to plot.


James
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