IMAQ Vision 5.0 - where are overlay vi's

Using IMAQ Vision 5.0 for LabVIEW, I find in the online reference overlay vi's such as IMAQ overlay rectangle, etc. I want to overlay a rectangle on an RGB image to show a region of interest in the application front panel. However I can't find any of these vi's in any of the IMAQ palettes. Where are they?

The overlay functions are new functions introduced in IMAQ Vision 6. In version 5, your options are to use IMAQ Draw or IMAQ Draw Text. These functions will allow you to type text and draw shapes on the image. The only drawback is that both are destructive overlays.
Ken Sun
Applications Engineering
National Instruments

Similar Messages

How do I identify the current IMAQ vision version, including updates ?

I would like to identify the installed version of LabVIEW on an old machine, including the IMAQ vision updates. Where do I look ???

A quick way to find out versions of all National Instruments software/driver installed is to go to MAX (Measurement and Automation Explorer) and click on Help->About MAX->Tech Support then the System Tab.
If your system is from the pre-MAX days, then you can get the version numbers in Add/Remove Programs in the Control Panel.
Hope this helps.
Ken
Applications Engineering
National Instruments

I don't have IMAQ vision, where can I get some super basic easy VI's for IMAQ?

Hello,
I don't have IMAQ vision, where can I get some super basic easy VI's to get images from my IMAQ PCI-1424 board, without Vision?? is there some kind of tutorial that will help me get started from the ground up in designing VI's? Also I am trying to run the HL Snap in picture control.vi and I keep getting an error that says:
-1074397150 occured at IMAQ snap.vi
Possible reasons,
NI-IMAQ (Hex 0xBFF6022) wait timed out; aquisition not complete.
Why am I getting this??? it is driving me nuts, I don't know how to get a image on my computer from the IMAQ board. I can get one in MAX. Also in MAX I try to change the camera driver to Kodak because that is the boar
d that I have KLI-2113, but when I try to change anything under properties like the window size and then apply it, it says error removing old camera. why does that do that? Some of the other drivers sort of work and let me change the settings. I don't know if they work right though. I can get atleast some response to light from the CCD chip.
Anyways, thanks,
Brian

Brian;
There is an example on how to display images in LabVIEW without having the full IMAQ application.
You can always convert the images to bitmaps (flattening) and display them in a picture indicator. If you are going to do some image processing within LabVIEW, this may be the way to go.
About the error you are getting, hopefully the above example will help you in resolving the issue. If the problem persist, it will be more beneficial if you can post the code. Also, you may get better answers if you post your question in the Vision forum.
Regards;
Enrique
www.vartortech.com

Where can I get ComponentWorks IMAQ Vision reference?

I have setup LabVIEW2012 on my pC. The cwimaq.ocx and cwimagview.ocx were also registered. Now I want to building componentWorks IMAQ Vision Applications with Visual C++6.0.
I use the Visual C++ MFC AppWizard created a skeleton project and program. After insert the Activex Control in the program, the corresponded wrapper classes were created. But I don't know how to use these classes. For example ,how to display two dimensional array as image.The manual of "Getting Results with ComponentWorks™ IMAQ Vision" says that ComponentWorks online reference (If you have ComponentWorks installed on your computer, you can access the online reference by selecting Start»Programs»NationalInstruments>>ComponentWorks»ComponentWorks Reference).
But I only registered the Activex control. How can I get the ComponentWorks setup program and the detailed reference？ Many thanks.

Brian;
There is an example on how to display images in LabVIEW without having the full IMAQ application.
You can always convert the images to bitmaps (flattening) and display them in a picture indicator. If you are going to do some image processing within LabVIEW, this may be the way to go.
About the error you are getting, hopefully the above example will help you in resolving the issue. If the problem persist, it will be more beneficial if you can post the code. Also, you may get better answers if you post your question in the Vision forum.
Regards;
Enrique
www.vartortech.com

My camera won't work with IMAQ vision builder

I have a Hitachi camera , and a PCI 1407 frame grabber
the camera works well in MAX under devices , but when I open the IMAQ vision builder , it not visible in the devices , and I can't open MAX from the vision builder. It's gets me that error "1074397163" at the end it has bad interface
it's not the power supply of the camera since it works well at MAX , so its like the camera's name is img0 in MAX , and another thing in IMAQ vision builder, I tried updating my softwares but nothing happened, can anyone help please ??
thanks

Dalia,
I think I may need some clarification on what exact program and function you are using. Are you getting this error with the Vision Builder for Automated Inspection (VBAI)? Or are you using LabVIEW and are receiving this error from the IMAQ Init.vi?
If it is in VBAI, and you are trying to acquire an image, the Devices should auto-populate in the Main tab of the Acquire Image setup. Simply select the camera and press Grab or Snap.
If it is in LabVIEW, right-click on the interface input of the IMAQ Init.vi to create either a constant or a control. If it does not auto-populate with the correct camera name as it is in MAX, "img0". Or you can change the interface name in MAX by simply right-clicking on the camera and selecting "Rename"
Can you elaborate on what you are referring to when you say "the MAX explorer won't work in IMAQ"?
Huntington W
National Instruments
Applications Engineer
***Don't forget to give Kudos and Accepted as Solution where it is deserved***

Imaq vision function reference

Hello All,
I am new to Lab Windows/CVI and am using the imaq vision library.
Could anyone tell me where I can find the IMAQ Vision function reference? I have found a function reference manual at Start--> National Instruments --> Vision--> Documentation. But, all the functions described in this document are starting with img******(). I was looking for functions beginning with imaq****().
I am sorry as it might be a stupid question but any help would be appreciated.
Cheers,
Solved!
Go to Solution.

Hello Harmonium,
i think what you search is under Start --> National Instruments --> Vision --> Documentation --> NI-IMAQ IO
In this directory you found the documentation for the imaq**** functions.
C:\Programme\National Instruments\NI-IMAQ IO\Docs
There are three librarys the NI-IMAQ I/O, NI-IMAQ Librarys and the NI-IMAQdx. If you can please use the NI-IMAQdx library,
because its the newest for doing aquisition. The documentation can be found here
C:\Programme\National Instruments\NI-IMAQdx\Docs
best regards
Alexander Glasner
AE NIE

How to use the examples in IMAQ Vision Builder?

I tried many times to use the examples brought in IMAQ Vision Builder(or LabView 6i ?) or download the similar examples from website of NI in order to learn some skills(I am really new with it!). But Whenever I click the example I want to run and a new dialog window always opened and ask me to find a VI named ???(??? is like for emample: IMAQ Windraw) and I always failed to find this VI!!! Where are this VI or How to use those emamples??? Thank you advanced!!!
Swedlin
[email protected]

Hello Swedlin,
IMAQ WindDraw is a VI that is included in the IMAQ Vision toolkit (see http://sine.ni.com/apps/we/nioc.vp?lang=US&pc=mn&cid=1305 for ordering information).
If you are tring to run examples that include IMAQ WindDraw (or any other functions that are in IMAQ Vision), a dialog message will prompt you locate the VI manually (because the initial search failed).
- Installing IMAQ Vision for LabVIEW will remove the message, and the examples will run.

IMAQ Vision Software with FlashBus MX Frame Grabber?

Is it possible to use IMAQ Vision Software with a FlashBus MX Frame Grabber Card? In the manual I only find references to NI acquisition boards. Unfortunately I have to make do with the hardware I already have.

Heiko,
It may be possible, but you will need to find out if there are any LabVIEW drivers for the card.
Vision analysis can be split into two components. The first half is getting the images into the computer with a frame grabber card. This can be done easily using NI frame grabbers, or with varying degrees of difficulty using other frame grabbers that have LabVIEW drivers.
Once the images are in the computer, IMAQ Vision doesn't care where they came from, so it can be used to manipulate images regardless of the source.
Bruce
Bruce Ammons
Ammons Engineering

How can I in IMAQ Vision know to which blob a pixel belongs to?

Hi,
How can I in IMAQ Vision know to which blob (particle) a pixel belongs to?
I use IMAQ Complexmeasure and Complexparticle to get data about every particle in the image and then use this data (position, length and direction) to see if two particles "belong to each other". I want to start from one particle and from the data (position, length and direction) find a search area and in that area look for pixels (binary image), if I find one I want to know to which blob that pixel belongs to. (Programmatically) How can I do that?
Deeper explanation: The image I send is just a small part of a bigger image. As you can see there are a lot of streaks on the image, they are generated by small particle
s moving in the air. I use a long exposure time and have a chopper in front of the camera that will generate a short streak, a middle long streak and a long streak. By doing this I can see how the air is moving around in a room. As you can see I must know which streaks are generated by the same particle. As I said earlier I use IMAQ Complexmeasure and Complexparticle to get data about every blob (streak in this case) in the image and then use this data (position, length and direction) to see if two streaks "belong to each other". I start from one streak and from that streaks data (position, length and direction) I can find a search area and in that area look for pixels ( hopefully belonging to a streak generated by the same particle ), if I find a pixel I want to know to which streak (blob) that pixel belongs to so I can look at this new streaks data (length, direction) to verify if these two streaks are generated by the same particle. So my questions are:
How can I see to which strea
k (blob) an individual pixel belongs to? (programmatically)
What is the best way to create a search area, ROI? (programmatically)
What is the best way to look for a pixel in the search area, IMAQ GetPixelValue? (programmatically)
Thanks
Pelle
Attachments:
streak.jpg ‏6 KB
scan0001.PNG ‏66 KB

Pelle,
This is an interesting project. It will be difficult to use blob processing, because there are a large number of intersecting paths.
A few ideas to start with:
For each particle, the path is essentially the same brightness. I would start with white and gradually decrease the threshold level to locate the different blobs.
Also, for each particle, the alignment is roughly the same. I would only consider blobs that have about the same orientation of the long axis. They don't seem to make sudden right angle turns.
I would search by doing a particle analysis, select a particle and search for related particles by comparing the centroid of nearby particles to see if they fall in the area +/- 15 degrees from the long axis orientation of the
particle. You should be able to locate a best choice at each end of the particle.
Bruce
Bruce Ammons
Ammons Engineering

Speeding up LabVIEW scripts generated by IMAQ Vision Builder

Hi,
I am an experienced c++ software developer, I have mainly used Microsoft's Visual Studio for development. Now, I am developing a real time application using LabView and IMAQ Vision Builder. The LabView application I developed calls a script that was generated by IMAQ vision builder...the application works, but it is too slow for the processing I need to do. In C++ I wouldn't have any trouble speeding the application up, but I am still learning how labview handles threads etc. Does anyone have any ideas?

Your question is very difficult to answer. Without knowing anything about the processing you are doing, I can't suggest anything to increase the speed.
Vision Builder does not produce the most efficient code possible. It is likely that the algorithm could be improved, but this really depends on what you are doing. It is also possible that your acquisition could be what is slowing you down, especially if you are using Snap.
Perhaps if you post the code generated by Vision Builder it will be possible to help you more.
Bruce
Bruce Ammons
Ammons Engineering

Why I can't subtract two images in imaq vision builder?

Hi,
I have many times tried but failed to get the objects in a image by subtraction with another image which is background, in imaq vision builder(ver. 6.0). I totally can't use the "operators" command under "greyscale" to subtract the two images becauee all commands under the "greyscale" are always unactivated after two images have been stored in 2 idfferent buffers. I really don't know why and this vision builder is so difficult to use, unbelievable! I followed the instructions in its Help and it's quite simple but I totally failed to make this operation!
Two samples of images have been attached and maybe it's very ease for you to filter out objects(fibers) by subtraction each other. Show me your scrip
t if you can. It's urgent to me.
Or the idea of the way I thought for filtering the objects is wrong? Point out please if you know.
Thanks and Merry Christmas and Happy New year!!
Swedlin
Attachments:
10Img0.jpg ‏27 KB
123Img0.jpg ‏25 KB

Okay, this is not quite as straightforward as it could be, but you can do image subtraction in Vision Builder. The basic idea is as follows:
- select first object image and copy it to buffer 1
- select "image >> get new image" and load your background image from a file.
- put this in buffer 2
- retrieve object image from buffer 1
- perform subtraction. Even though these images appear to be greyscale, they are actually saved as 24-bit RGB images, so you need to use the color operators instead. Vision Builder will only allow you to select steps that are valid for the image you have loaded. You could extract the luminance plane from all of your images to work with 8-bit images if you like.
I have attached below a background image, several object i
mages, my script, and the results of batch processing. You will need to edit the "get new image" step with the correct path to the background image on your machine.
Bruce is right though. This is a bit easier in LabVIEW.
Regards,
Brent R.
Applications Engineer
National Instruments

Functions in IMAQ Vision for Labview same as those in Vision Builder?

Hi all...
i just have a simple question..Does IMAQ Vision for Labview has the same functions of Vision Builder?
I know that with Vision Builder you can develop an application interactively...but does it has more functions than IMAQ Vision?
So if i buy IMAQ Vision can i develop the same kind of applications that i would make with Vision Builder?
I´m specially interested in color matching and color analisys functions.
Thanks

IMAQ Vision has much more than Vision Builder. Basically, VB was created using Vision and they implemented a good number of the functions in a menu driven format. However, there are many more functions available that were not integrated into VB.
Vision does have some good color matching and analysis tools.
Bruce
Bruce Ammons
Ammons Engineering

Error -1074396077 (IMAQ Vision: Incompatible image type) after running IMAQ Mask

I am attempting to process color picture of pellet. I want to exclude any particle that touches the edges of the color images. I created mask from original image and used this mask on the original color image to retain only the color particles that don't touch the boundary. The error occured when I ran the IMAQ Mask. The error message is “Error -1074396077 (IMAQ Vision: Incompatible image type)”. How can I fix it ?
I have picture and program as attached.
Attachments:
color sorter 01f.vi ‏87 KB
Red01a1.jpg ‏30 KB

Hi XuanThuy,
The IMAQ Cast function is part of the Vision Development Module (VDM), under the Image Management Palette, as indicated by this document: http://zone.ni.com/reference/en-XX/help/370281P-01/imaqvision/imaq_cast_image/. If you can't locate it and you indeed have the VDM, there may be an issue with the installation of this module. A similar issue has been encountered and resolved in this forum post: http://forums.ni.com/t5/Machine-Vision/can-t-find-IMAQ-cast-image-vi/td-p/340157. What version of the vision software are you using?

Is it possible to use numerical camera with Imaq Vision?

For the price and because my application is static I want to use a numerical camera for take photos

If you mean by numerical camera, a commercial camera, there are several possibilities. If the camera has an analog video output (NTSC, PAL), then an NI analog image acquisition card (1407, 1411 or 1409) can be used. It may be possible to import images to LabVIEW/IMAQ Vision if the camera has a TWAIN driver. Alliance Vision sells a TWAIN driver for LabVIEW/IMAQ Vision. Note, IMAQ Vision is able to retrieve images from file for analysis, so as long as you can store the image on the PC in an acceptable file format (.bmp, .tif, .jpg, .png, .avi), then you will be able to process your images using IMAQ.
Robert Eastlund
Graftek Imaging, Inc.
Phone: (512) 416-1099 x101
Email: [email protected]

IMAQ Vision - Writing Image Files: File Format

Hi,
I want to save some images in LabView 5.1.1 - IMAQ Vision 2.2.1 acquired by
a camera. Several file formats are supported:
BMP, JPEG, PNG and TIFF
For me the PNG format seems to the most attractive one as it provides
lossy-less compression and platform independentness. But, in the manual
there is a comment which I don't understand: It says that the PNG format is
not recommend for precise gauging or inspection measurements - and that is
exactly what I want to do.
I always thought that once an image file is loaded into LabView there is no
difference regarding to the file format the images were saved in. Can anyone
explain me, what the problem of the PNG format is? Which format can you
recommend for preci
se gauging instead (BMP?)?
Thanks,
Gerd Simons

one correction:
I use IMAQ Vision 5.0 and NI-IMAQ 2.2.1.
Gerd Simons
"Gerd Simons" wrote in message
news:[email protected]..
> Hi,
>
> I want to save some images in LabView 5.1.1 - IMAQ Vision 2.2.1 acquired
by
> a camera. Several file formats are supported:
>
> BMP, JPEG, PNG and TIFF
>
> For me the PNG format seems to the most attractive one as it provides
> lossy-less compression and platform independentness. But, in the manual
> there is a comment which I don't understand: It says that the PNG format
is
> not recommend for precise gauging or inspection measurements - and that is
> exactly what I want to do.
> I always thought that once an image file is loaded into LabView there is
no
> difference regarding to the fil
e format the images were saved in. Can
anyone
> explain me, what the problem of the PNG format is? Which format can you
> recommend for precise gauging instead (BMP?)?
>
>
> Thanks,
> Gerd Simons
>
>

IMAQ Vision 5.0 - where are overlay vi's

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