IMAQ Write JPEG File Error

Hi,
I am trying to save the image file captured by a camera (.tiff) to JPEG file, but it came up with an error. Can anyone tell me how to fix this issue?
The sample VI and the TIFF image file are attached. Thanks a lot.
Jane
Solved!
Go to Solution.
Attachments:
SaveJPEG.vi ‏47 KB
SaveJPEG.vi ‏47 KB
IR_Image.zip ‏443 KB

The VI "IMAQ Dispose" is not used immediately after creating the image with the VI "IMAQ Create" and is closing a session you will process later, you must also change the location at which to save the image, because to the location "C: \" and "C: \ temp \" often generates problems with operating system permissions.
Regards.
Jonathan Cruz
CHALLENGER
K U D O S __ B I E N V E N I D O S

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IMAQ Write JPEG File doesn't save color

Hi, I'm writing an 8 bit image to file. If I save it as bmp (using "IMAQ Write BMP.vi") File then color data is saved. If I save it as Jpeg using "IMAQ Write JPEG File", then I only get grayscale. I have attached a demonstration. There appears to be a bug in the IMAQ vi.
Attachments:
ni_demo.llb ‏203 KB

At IMAQ create.vi you need to specify RGB image type. You are actually using 8 bit, that is a grayscale type.
Attachments:
ni_demo.llb ‏203 KB

Write JPEG file error on Compact FieldPoint

Hello!
I'm using Compact FieldPoint 2120 and LabVIEW 8.2. I'm trying to capture an image of a front panel and to save it into Compact FieldPoint using the "Write JPEG file". Unfortunately, it gives the error 1.
I indicated c:\<jpeg_file_name.jpg> for the path.
I switched the target to "My computer" and the code works correctly.
Is that a problem of the path or VI Write JPEG file cannot be impemented on Real-Time target, such as Compact FieldPoint?
Thank you!

Well, that's true that Real-Time does not support Write JPEG file (this is the first problem). I'm using now Write BMP file insteed. The second problem, verified also in my practice, is that the Front Panel does not exist too on Compact FieldPoint.
My aim is to develop web-interface to deal with the Compact FieldPoint from any computer. That is true that it has its own built-in Web-Server, but it doesn't have a script-executive environement. My idea was to create a custom "web" server running in parallel with the principal Web-Server to execute VI scripts.
For that purpose I used TCP Listen -> TCP Read -> TCP Write runing on the port 82. I can send from any browser the request http://<IP address>/<script.vi>?<params> and my custom server parses the request and executes the <script.vi>. Then to avoid the problems with HTTP protocol I write the redirecting request to the port 82 like <meta http-equiv="Refresh" content="0; URL=<result_page.html">. So, It works.
The result_page.html must represent the acquired data from the Compact FieldPoint channels. So, I execute a requested script to show the specified data into Graph waveform and then to take a snapshot and to save to the Compact FieldPoint. Then the result_page.html contains the link to the saved snapshot picture.
Once executing the requested VI script, the Invoke Node gives the error 1003 stating that "the VI is broken etc...". I think that is because of the script attempts to take a snapshot of a panel which doesn't exist...
Maybe somebody has an idea how to view the acquired data in browser ?
Message Edited by Mons on 07-10-2008 06:06 AM

Ebook error message: "Fail to write destination file error"

I am attempting to transfer ebooks (checked out via my library's ebook consortium) from Adobe Digital Editions to my Nook. I have done this in the past with no issues, but recently I have been getting the following error message: "Fail to write destination file error".
I know the issue is NOT lack of space on my Nook (I cleared it of all info and still received the error message).

I had this problem as well, and after doing some research via google (because I found NOTHING helpful in adobe forums), I found the problem....my Nook was full. I had no idea this was even possible! But, I borrow a lot of library books, and didn't realize that after they expire, they are still taking up space on my Nook. Here's how to check: plug your Nook into your computer, go to file manager (right-click the start button in Windows), find the Nook drive and right click, choose properties. This should show you a pie chart of used/free space on your Nook. If this is the case, you need to remove some files from your Nook. For me, I had to find the Digital Editions file and delete all the thumbnails and actual files for the library books. If it's booked you've purchased, perhaps you need to archive some books. Hope this helps!

Replacing a file using 'Write JPEG File(6_1).vi'

when windows prompts for the file name to save the jpg, if I type in or choose an already existing file name, the jpg image fails to change. It works fine if I enter a unique file name. Any help?

I've tried to duplicate your error on both win 98 and xp, but cannot. I attached my test program along w/ a copy of Write JPEG just in case yours has been altered.
Perhaps you could post your own problematic vi.
2006 Ultimate LabVIEW G-eek.
Attachments:
JPEG_test.vi ‏49 KB
Write_JPEG_File_copy.vi ‏91 KB

A write to file error without error number

Hello All,
I have this error in 3 different cube:
A write to file [essbase/e22/app/appli/database/ess00022.pag], from address [0x3ce329d0] with handle [135] to offset [886063104] for [0] bytes, failed with error [2] after [6607] bytes.
A write to file [essbase/e20/app/appli/database/ess00022.pag], from address [0x2da58670] with handle [157] to offset [886071296] for [0] bytes, failed with error [0] after [2687] bytes.
A write to file [essbase/e13/app/appli/database/ess00007.pag], from address [0x2da58670] with handle [164] to offset [338931712] for [0] bytes, failed with error [2] after [3431] bytes.
For this cube, i use four partition storage : e22, e20, e13 and e18.
The error occurs in the last pag file of each partition (Each partition is about 45Go).
The final cube is greater than 100Go like the 2 others.
Cube lower than 45Go works fine.
Can someone help me ?
Thanks

[Tue Aug 30 17:44:58 2011]suprfa01/appli/database/user/Info(1012668)
Calculating [ TTAC-TTAC(All members)] with fixed members [DM-PHASE(RCNV)]
[Tue Aug 30 17:44:58 2011]suprfa01/appli/database/user/Info(1012678)
Calculating in parallel with [3] threads
[Tue Aug 30 17:44:58 2011]suprfa01/appli/database/user/Info(1012679)
Calculation task schedule [874573,150963,36043,11511,8416,2748,1322,1261,38,7,2,1]
[Tue Aug 30 17:44:58 2011]suprfa01/appli/database/user/Info(1012680)
Parallelizing using [2] task dimensions.
[Tue Aug 30 17:45:55 2011]suprfa01/appli/database/user/Info(1006047)
A write to file [essbase/e22/app/appli/database/ess00022.pag], from address [0x3ce329d0] with handle [135] to offset [886063104] for [0] bytes, failed with error [2] after [6607] bytes.
[Tue Aug 30 17:45:55 2011]suprfa01/appli/database/user/Info(1070121)
Current size of file [essbase/e22/app/appli/database/ess00022.pag] is [886063104] bytes.
[Tue Aug 30 17:45:55 2011]suprfa01/appli/database/user/Info(1006050)
For transaction [database], the [53704] byte Input Transfer Buffer is at address [0x3ce3fbb0] and the [53704] byte Output Transfer Buffer is at address [0x3ce329d0].
[Tue Aug 30 17:47:23 2011]suprfa01/appli/database/user/Info(1012681)
Empty tasks [872761,149508,35363,10814,7719,2748,1322,1261,38,7,2,1]
[Tue Aug 30 17:47:23 2011]suprfa01/appli/database/user/Info(1012675)
Commit Blocks Interval for the calculation is [4000]
[Tue Aug 30 17:47:23 2011]suprfa01/appli/database/user/Info(1012668)
Calculating [ TJUR-TJUR(All members) TMET-TMET(All members)] with fixed members [DM-PHASE(RMNV); TENS-TENS(ENS-1, ENS-2, ENS-14, ENS-3, ENS-4, ENS-11, ENS-15, ENS-18, ENS-22, ENS-23, ENS-24, ENS-10, ENS-6, ENS-8, ENS-7, ENS-9, ENS-5, ENS-20, ENS-17, ENS-16, ENS-12, ENS-13, ]
I only have this.

Jpeg file Error

I tried importing jpegs into FCP and I'm getting File Error: 1 file(s) recognized, 0 access denied, 1 unknown.
1) Earlier in the day I imported a bunch of jpegs in the same fashion and the same type with no problem.
2) I did change them to PSD files and they came in fine.
But they will not go in as jpegs. I'm at a total loss as to what happened. I did fix my permissions and run Disc Warrior, but that didn't help either.
Anyone run across this problem or know what is going on?

I think I may have found the cause. A friend gave me a CD with mpg files from his mini-DVD camcorder. I was using Handbrake to convert them and FCXHD doesn't seem to like ANY format I convert to.
I CAN import my own clips from another project, so clearly that part is working correctly.
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Thanks for reading this.
Howard.

Servlet I/O Stream problem: cannot write into file, error 500

I am a new Java developer and now, I am facing a problem regarding the error 500. I try to grab records from a table with a date as a constraint. There are two servlets involed: a) saveRecord and b) getRecord. Servlet getRecord will grab data from a database while another servlet, saveRecord will get the data from servlet getRecord and save it into a file. The codes are as below:
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// Servlet Name : saveRecord
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instr     = new BufferedInputStream(http_post.getResponseBodyAsStream());
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Then, the result will be post back to a JSP page. It didn't work when the records in database growing bigger ( > 100 000 records) but works nice while the records are still in a small quantities ( < 20 000 records). It seems that no record can be inserted into the file and the JSP page becomes blank. When I opened the csv file, I found a message"Error 500:" inside it.
Hope you all experts can help to figure out this problem. TQ

I am amatuer in Java Programming, so I don't know how to implement serializable interface but I will look through it.
However, as I mention before, the code run perfectly if there are not much records un the table. But once there are more and more table added in (> 1000 000 records) in the table, it becomes unstable - sometime it works but most of the time it doesn't. So, I didn't find any different event I replaced the code with String date = "=2000-01-01".
Anyway, thanks for your help.

Memory leak in IMAQ Write PNG File

Hi,
I have a labview program that I'm using to do Speckle Patter Interferometry - it takes an image, takes a second image after some time, then subtracts the original image from the first and saves the subtraction. The process reveals fringes on an object deformed on wavelength scales.
The problem currently is that the program seems to have a memory leak. When I run the program, the amount of memory being used (according to Windows Task Manager) just keeps going up and up then after about 20 minutes, it crashes with the error:
Error 1074396159
Not enough memory for required operation
The error is normally when the file tries to write the png file - though that is the part of the program that takes the most time so it could just be coincidence that it happens at this point in the loop.
I've tried using the labview profiler (output attached), but can't see a particular VI that is using an abhorrent amount of memory.
I'm fairly stuck for ideas - I've attached a library with the VI and its sub VIs - if anyone would be so kind as to give me a hand I'd be very much appreciative. I realise that my code is quiet messy - this is my first attempt at labview (albeit quite a long way into my first attempt) so any suggestions would be much appreciated also.
Thanks
Sam
Attachments:
ESPI.llb ‏556 KB
memory_profile.txt ‏237 KB

Hi Sam,
I'm glad to hear that you managed to fix the problem in your code. I have had a look at the code you posted and I have a few suggestions on how you can improve it.
In your code you haven't included the error clusters from the VIs. Most sub VI functions included in LabVIEW will have an Error In and Error Out port that will transfer any error information through the VI. If an error does occur in the code, the error will be passed through the rest of the VI. If a sub VI or function receives an error at its error in port the VI will not execute and the error will pass through until it reaches the end of the VI. At the end of a the VI there needs to be an Error Handler function to display the error information. As error information flows through the VI the same as the data, using error clusters is a good way to determine the flow of data through a VI. This is a good way to determine the data flow through the VI as opposed to Sequence Structures which should be used in moderation.
I have taken a segment of you code and made some minor modifications to demonstrate how error clusters can be used (see screenshot below).
Error clusters can be implemented into any logic for the stop condition of a while loop. The Unbundle by Name using the Status option can be used in conjunction with the error cluster to produce a boolean output depending on if an error has occurred. If an error does occur, the function will produce a true and if an error does not occur it will produce a false. The error cluster can also be expanded by hovering the mouse over the top or bottom of the function and dragging the grey box up or down. This is useful for when you want to produce multiple outputs from the same data, such as the histogram data in your VI.
Another thing I noticed in you code was some redundant logic. You had set the Stop button default on your front panel to true, which meant that an inverter had to be used to stop the first while loop and the stop condition in the last while loop had been changed to Continue if True. If you had kept the stop button default to False and the stop condition of the last while loop to Stop if True, the inverter on the first while loop would not be needed. This however is only a small issue but its something you could keep in mind when writing other code.
Hopefully these suggestions will help you to further develop you LabVIEW code. I understand that implementing these suggestions into you current code could be an issue due to the size of it, but they are good features to consider when developing any code in the future.
If there is anything you are unsure of please do not hesitate to post any questions. I will be more than happy to assist you.
Kind Regards
Jason W.
Applications Engineer
National Instruments UK & Ireland

How can I prevent my "Write JPEG File" vi from printing on my default printer?

I use this VI to create a JPEG image of my front panel, but it always both creates the JPEG image like it's supposed to AND it prints to my default printer. Has anyone else had this problem? Is there a workaround? Is there another way to create JPEGs? I've replaced it with the "Write to BMP File" vi, and I'm getting the same results.
Solved!
Go to Solution.

Never seen that before - posting code that shows this behaviour would be handy.
My guess would be that you have an errant VI.Print.Panel to Printer method hanging around somewhere in your code.
CLD

I have used the write jpeg file from intensity but image colours are different

Here are the relevent files for my program.
Insert these values
x1=218
x2=368
y1=45
y2=45
r=39 in order to run adn crop the pictures
I hope someone can help
Attachments:
218_368_45_39.jpg ‏23 KB
2ColourProgram.llb ‏355 KB

Hi,
I'd suggest you to use PNG format to save the images of your intensity graphs. You get sharper images than JPEG format.
I made some modification to your program to save PNG files, anyway you can try to save in JPEG and see the difference.
Alberto
P.S. I removed the delay of 100ms from the final Equation with kl fator.vi, the speed is much increased.
Attachments:
2ColourProgram.zip ‏176 KB

Write to file taking too long.

Hi,
I have a peculiar problem . I have used state machine architecture to build my code. In one particular state i write the data accquired and strore the wave form graphs as jpegs on the disk.
File open and close happen only once outside the while loop. I am using "Write FIle" vi to write the data. Data is first bundled into a cluster and then writte. I use "Write JPEG FIle" to store graphs as JPEGS.
When i create the executable and run, the program stops here in this state for an indefinite amount of time. (sometimes 60 secs, 80 secs)
and then continues. Multiple tests have confirem that the problem is either due to file write or JPEG write.
Can anyone please tell me the cause of error
what happens to all the pop ups (errors thrown by labview when running the program) when the program is converted ino an executable?
Rgds
Prithvi.

Hi prithvi,
I suppose you work on a windows system. Windows may buffer the contents of a folder to allow faster directory queries. So sometimes your access is granted very fast,
sometimes not (= getting new directory listing)...
It's always a good idea to have a well structured folder tree for your files. Why don't you use subfolders for each measurement? Why don't you use a subfolder for each new day/hour, depending of the number of measurements done it that time?
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

Suddenly can't open some of my jpeg files, says error-43

Dear All,
I'm currently using OS X Leopard 10.5.1. I have a NTFS formatted HDD connected to my OSX, to store and share data with another Windows PC in my network. I installed MacFuse and NTFS-3G to enabled me to write and read from that particular HDD.
Recently, I found out that some of my jpeg files and a particular zipped files can't be accessed. When I tried to access it, it says "Unknown error-43" or similar.
When I tried to delete it, it can't be deleted (can't be copied or anything else). Tried to drag it to Desktop, but it doesn't allow me to (it shows a small icon of the "not allowed" sign). I also noticed that in my trash bin there's a file that can't be cleaned as well (even though I tried to emptied the trash), the file name is some weird characters and ends in .?: or something. If I dragged that file to Desktop, it'll be gone and trash emptied, but if I tried to access one of the "missing jpegs" file, it'll show up again.
I also connect another external HDD for my Time Machine, but when I found out it performs so slow and tend to freeze my Mac, I disconnect it and stop using Time Machine. When I connect the HDD again, it doesn't backed up the file I'm trying to find.
What gives? Any thoughts would be appreciated

The error, 43 is a "file not found" error or some such similar thing:
http://support.apple.com/kb/HT1618
It sounds as if the file has become corrupted and while it shows up in the directory it may not exist or it may be corrupted.
I suggest that you deal with these files in the Windows environment. In OS-X they sometimes show up as "ghost" files when trashed, because the trash bins are "shared" and OS-X cannot delete a Windows file even though it can be put into the trash.
Accessing files between Windows and Leopard must be done very carefully since each OS may "touch" the file and change it in some way that the other OS cannot deal with it, as you may be finding out.
It's best to copy a file into OS-X and then deal with it, and vice-versa when in Windows, and never directly access it with another app.

Probleme avec Imaq write file qui n'enregistre pas les images en jpg

Bonjour,
dans le cadre d'un stage, je suis en train de dévellopper un programme qui récupère une vidéo issue d'une caméra usb. Jusque là tout vas bien. Mais je souhaite réalisé une vidéo a partir d'une suite d'image au format jpeg que le programme aura enregistrer dans un dossier.
Mon probleme etant que Imaq write file 2 que j'utilise n'arrive pas a enregistrer les image au format jpg (alors qu'il y arrive au forma png, tiff ou jpg2000). Ainsi, lorsque je lance la capture, le programme a l'air de faire des opération mais lorsque je vais dans le dossier où doivent etre entreposé les jpeg, celui ci est vide.
J'utilise labview 2010 et suis sous windows 7 x64 bits.
Merci d'avance pour l'aide que vous pourez m'apporter.

oui bien sur, le voila :
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File acces denied @ IMAQ Write File 2

Hi,
I've started a project using Vision Development Module and I'm stuck in saving some templates to a folder.
I tried many other ' methods' using the same Imaq Write File 2 and all have the same error...
Below it's a basic example.
Maybe somebody can provide a correct solutions or give me an idee about what might be wrong.
I'm loosing my mind soon
PS: I gave Full Control Acces to all users ...
Thanks in advance!

Thanks for your reply!
Actually, in the main vi I'm using grab function.
The thing is... i'm using Folder Path instead File Path... If I'm creating a control from vi's path terminal, it will create a File Path control which needs : "the complete pathname, including drive, directory, and filename, of the file to write". But I cannot have a filename before I get a picture. Maybe there is another vi which has to be used before, for setting the filename???
Don't worry about "F" drive. I've already tried the other drives and same thing.
Thanks!

IMAQ Write JPEG File Error

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