Getting COUNT, SHAPE, and AREA for ROI(s) ...

mbatchelor

All --

I am working on an APPLICATION where the user is normally working with a SINGLE RECTANGULAR ROI.

After the user is given the opportunity to FINE TUNE the ROI, I would like the APP to be able to

-- Determine the number of active ROIS
-- Determine the SHAPE of the active ROIS
-- Determine the AREA of the active ROIS

I see some information within the FORUM entry for

Resize ROI

Is there a more efficient way to do this or is

Resize ROI

the best guide on how to do this?

Thanks.

-- Matt

YuriG

Matt,

You can use IQL functions to get ROI parameters. ROIs are McRegions exposed as ActiveImage.Aoi. Here is the example:

Imports MediaCy.IQL.Features

    Public Sub GetROIArea
        Dim roi As McRegions=ThisApplication.ActiveImage.Aoi
        If roi.Count>0 Then
            'print area of the first ROI
            Debug.Print roi.mRgnArea.value(0)
        End If
    End Sub

The project must have a reference to MediaCy.IQL.Features.dll.

Yuri

YuriG

Matt,

Why do you use ROIs? If you need these parameters you can just use manual measurements, all these parameters, including intensity, will be reported in the data table.
Resizing of measurements can be done easily using Grow/Shrink functions. 

Also, measurements and ROIs can be converted one to another using Features manager.

Yuri

mbatchelor

Yuri --

Thank you for your prompt response.

The customer has a sample handler (imaging RECTANGULAR PETRI DISH).

They are measuring a SINGLE SPECIMEN within the boundary of the PETRI DISH but the SPECIMEN can move around because there are multiple images.

They want to be able to set a RECTANGULAR ROI in the first (n) image that is big enough for the SPECIMEN but not as large as the PETRI DISH and to move (but not change the size of the ROI) should the SPECIMEN move beyond the ROI in the second (n+1) image.

They want the AREA of the ROI to be documented along with the SPECIMEN MEASUREMENTS.

I can get the AREA of the ROI using a variety of mechanisms but if I can query the ADMINISTRATION level of PREMIER rather than the MEASUREMENT level it would be super.

Thanks again.

-- Matt

mbatchelor

Yuri --

Thank you again for your prompt response.

This looks perfect.

I'll wire it in ASAP and I'll let you know how it goes.

Thanks.

-- Matt

mbatchelor

Yuri --

The code above works like a champ.

Thanks.

-- Matt