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multiple ROIs and their histogram

Hello, now I can get one ROI on screen & get the histogram


However I want to analyze several ROIs at the same time, how should I deal with it?


I googled about multiple ROIs ,and it seems that I should use UNGROUP ROIs


but the connection is incorrect... how to fix it?


and after ungroup the ROIs, can I get the histogram mean value from each ROI?


Thanks for any advices.

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Message 1 of 2

-The Ungroup ROIs output is an array of ROI descriptors.

-Which means you have to index each ROI descriptor and apply to image by using for loop.

-Please try below free online material :

Start with below links to learn about LabVIEW programming 

NI Learning Center

NI Getting Started

-LabVEW Basics

3 Hour LabVIEW Introduction

6 Hour LabVIEW Introduction

LabVIEW Graphical Programming Course

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Message 2 of 2