Labview 8.5 image

Does anyone know if National Instruments has changed the image datatype with version 8.5? When I open images saved with Labview 8.2 in 8.5, there appears to be a byte misorder (kind of like the wrong endian).
Thanks,
Chris
Chris Reyerson
Optical Systems Engineer
Arete Associates
Tucson, AZ

Hey Chris,
I have checked this out in the release notes for LabVIEW 8.5 and have found that we have not changed the method for writing/reading images from LabVIEW 8.2.
What sort of image are you reading in (PNG, JPEG, BMP)? What does the image look like when it is opened in LabVIEW 8.5? I hope this helps you out. Have a great weekend!
Evan D.
Evan D.
IMAQ/Vision R&D
National Instruments

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How do I load a picture from the clipboard (either Windows clipboard or Labview clipboard) into image data that can then be processed in Labview?

I want to load a picture from the Windows clipboard (and if not possible, then from the Labview clipboard) into actual numerical image data so that it can be processed in lab view. When I'm at the main screen where I can add controls, I see a section of controls called "Vision" in the tool bar where all the different controls can can be added from. When I go to the control called "Image" and put that on my form, and then look at the flowchart/blockdiagram programing window to see what inputs and outputs it has, I only see one output, and no inputs. And when I right click on it, I see NO way to load an image into the Image control. PLEASE help me.
Message Edited by Ben321 on 11-09-2008 04:32 PM

Hi Ben,
National Instruments has an image processing software called Vision and although I am not completely sure, I think the controls that you found in the control pallet are used in conjunction with the software. Depending on what kind of image processing you want to conduct in LabVIEW, you might want to consider purchasing that product.
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Hello,
I have labview 8.5 version in my Winxp. I have PCO camera (pixelfly). So far I know that it saves 12 bit images. I used normal save pattern of labviewas png,tiff or jpeg. As .pngit saves the images as 32 bit and as bmp it takes 8 bit images. But the picture quality is not good. I used IMAQ to take single picture and to save it I used IMAQ Write File 2. I used the following mechanism.
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Please inform where I made the problem. Why the picture is not as like as 12 bit images of PCO Camera.
Thanks,
Stuttgart University,Germany.

IMAQ Create.vi supports Grayscale(I16) and RGB (U64). Both should be suitable for 12Bit Greyscale.
Documentation of "IMAG Write File 2.vi" says:
IMAQ Write TIFF File 2
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LabVIEW 8.2 Image Display bug

Hi all,
Description : Trying to create a constant by right
clicking on an image display (controls palette > vision > image
display) causes labview to crash.
LV
version : 8.20 only, didn’t exist in 8.0.1 and earlier !
Same bugg happens:
with image display (classic),
when trying to create a constant from a
local variable of these indicators,
when trying to create a constant on the
connector of a subVI for these indicators.
Message Edité par TiTou le 10-23-2006 08:38 AM
When my feet touch the ground each morning the devil thinks "bloody hell... He's up again!"
Attachments:
bugg_image_display.png ‏234 KB

Hello,
Thank you for reporting this. A CAR has been filed on the issue - for reference the CAR ID is 4308NMSQ.
Best Regards,
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Standard Response:
This was reported to R&D (4308NMSQ CAR ID) for further investigation. Thanks for the feedback!
Best,
JLS
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Hi...
The ImagetoArray function in labview 6.1 handles 16 bit images as an I16 data. This seems to cause memory overflow when I have intensities past 32k. How do I change this to an unsigned 16 bit array or is there a different function that I can use? Thanks much

Ivan,
At first I wasn't sure what you were asking. Now I think I understand.
If you have a 16 bit image, it doesn't matter if it is signed or unsigned. Both the U16 and I16 have 65,000 different intensity values, the numbers are just represented differently. In order to convert a 2-Dimensional I16 array to a 2-Dimensional U16 array, you will need to do some simple bit manipulation.
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Attachments:
IMAQ Signed Unsigned Example.vi ‏51 KB

Labview pda module: how can I resize image dynamically in an application?

Hello every one,
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Attachments:
cameracapture.vi ‏21 KB

Hi,
Indeed, like Romain D. said you have some interesting discussions where you can find some customer's experience like yours :
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How to Resize a picture
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Picture and PDA
PDA Picture Control Scrollbars
Let me know what happens.
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National Instruments France
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Can LabVIEW process images in RAW format? Can LabVIEW handle images in the multimegapixel formats produced by some of the current DSLR cameras (e.g. 5000x3500 pixels)?

Can LabVIEW process images in RAW format? Can LabVIEW handle images in the multimegapixel formats produced by some of the current DSLR cameras (e.g. 5000x3500 pixels)?
Can LabVIEW be programmed to remotely acquire images from a commercial DSLR camera with DirectShow capability? e.g. Canon Rebel T2i.

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Labview imaging opening. Milpitas, ca

http://www.fairchildimaging.com/main/careers.htm
Fairchild imaging is a manufacturer of CCD sensors and cameras.
Opening for test engineer with labview experience in
imaging. Click on above link for more info. Please
read posting before applying.
Milpitas, ca
(Please do not respond to this post.)

I am Sreekanth Komatineni from Virginia. Let me know if you still have the requirement for this position.
Here is my Skillset.
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Image processing

Sir,
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thank you.

Hi,
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This little program looks for an image in a folder. He analyses each picture, and makes a comparision between the searched picture and the pictures in the folder.
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Attachments:
img recognition.zip ‏43 KB

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You have two options for storing images in a relational database:
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Hi everybody, in my labview I write image from IMAQ USB to avi file and read image from avi file, the VI runs correctly at the first run then after that it goes wrong, I can write/read only one frame and it terminates automatically. Does anybody know why and how to solve this?
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Without seeing your code I can't comment specifically, but if it runs correctly the first time and then stops be looking for something that is not getting reinitialized correctly. Also what exactly do you have to do to get it to work again? Close and reopen the VI? Restart LV? Restart the computer?
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Hi Puneet_K,
Thanks for the code....I didn't know you could wire the output of the image data to a write VI. It makes sense in theory and i thought it would work....but it's not actually writing the PNG. I even tried BMP and JPEG but no results.
I'm posting an image of my code with the before and after. The before uses export image and it works, the after uses the get image and it doesn't create the file.
Attachments:
before.PNG ‏71 KB
after.PNG ‏71 KB

How to keep my image from flickering

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I think you're in luck. LabVIEW 7 Express along with NI-IMAQ 2.6 (which is a free upgrade on ni.com) has a new embedded LabVIEW front panel image display. No more child window or picture control headaches. The new image display is similar to a native LabVIEW chart or graph. Drop it down on the front panel and wire an image to it.
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