Image Corruption

[Dale Thayer-2]

Attached are 2 images.  First image (called ImageNormal.jpg) is the way the image should look.  Second image (ImageCorruptProblem.jpg) is being displayed by ImageJ.  Notice the image is scrambled.  Not sure what the problem is, but it only happens when I display the image in ImageJ.  If I zoom in/out, it sometimes fixes the image display.  If I run another window over this image, it sometimes fixes the problem.  Only happens on a particular computer which is a Dual QuadCore with an NVIDIA graphics card.  On this same particular computer, if I display the image with another image viewer, it looks fine.  So there is something about ImageJ, or Java, that is having a problem.  Perhaps someone has had a similar problem in the past.  Thanks for any help.

[Joachim Wesner]

Hi,

If I understand correctly from the title bar in one of your images, those
are not the *original* data files (JPEG), but the original data is in
another format!? (RAW?)

Can you give more details on that!?

Mit freundlichen Grüßen / Best regards

Joachim Wesner

Leica Microsystems CMS GmbH | GmbH mit Sitz in Wetzlar | Amtsgericht
Wetzlar  HRB 2432
Geschäftsführer:  Dr. Stefan Traeger | Dr. David Roy Martyr | Colin Davis
www.leica-microsystems.com



                                                                           
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             17.08.2010 23:52                                              
                                                                           
                                                                           
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Attached are 2 images.  First image (called ImageNormal.jpg) is the way the
image should look.  Second image (ImageCorruptProblem.jpg) is being
displayed by ImageJ.  Notice the image is scrambled.  Not sure what the
problem is, but it only happens when I display the image in ImageJ.  If I
zoom in/out, it sometimes fixes the image display.  If I run another window
over this image, it sometimes fixes the problem.  Only happens on a
particular computer which is a Dual QuadCore with an NVIDIA graphics card.
On this same particular computer, if I display the image with another image
viewer, it looks fine.  So there is something about ImageJ, or Java, that
is having a problem.  Perhaps someone has had a similar problem in the
past.  Thanks for any help.

[Anhang "ImageCorruptProblem.jpg" gelöscht von Joachim
Wesner/DEWET/LMSCentral/Leica] [Anhang "ImageNormal.jpg" gelöscht von
Joachim Wesner/DEWET/LMSCentral/Leica]


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[Dale Thayer-2]

The original image is RAW format, 2048x2048x16bit, I read into ImageJ with Import/Raw.  I saved the RAW image with ImageJ as a JPEG so the size would be smaller for posting.  I did screen capture of the corrupted image and saved as JPEG.  By the way, if I read in the RAW image and run the cursor over the image, the numerical pixel values are correct, so the image data is in ImageJ's memory correctly, but the display in the window is corrupted.  If I read the JPEG version of the RAW image into ImageJ, it also gets corrupted, so it doesn't seem to be related to whether I read it in as a RAW or a JPEG.

[Robert Baer]

I don't know that it was the same problem, but I had an image scrambling
problem some time back (you could probably find my posts).  My problem
occurred on a Vista machine that had an imageJ version that I downloaded
along with java.  My memory was that the bundled java was around version 16.
I was not dealing with raw files, though.

The ultimate solution, as I recall, was to separately install the latest
java from java.com and to delete the java from the imageJ folder that had
came bundled with imageJ.  The problem has not resurfaced with any of the
most recent versions of java.

HTH,
Rob


----- Original Message -----
From: "Dale Thayer" <[hidden email]>
To: <[hidden email]>
Sent: Wednesday, August 18, 2010 7:32 PM
Subject: Re: Image Corruption


The original image is RAW format, 2048x2048x16bit, I read into ImageJ with
Import/Raw.  I saved the RAW image with ImageJ as a JPEG so the size would
be smaller for posting.  I did screen capture of the corrupted image and
saved as JPEG.  By the way, if I read in the RAW image and run the cursor
over the image, the numerical pixel values are correct, so the image data is
in ImageJ's memory correctly, but the display in the window is corrupted.
If I read the JPEG version of the RAW image into ImageJ, it also gets
corrupted, so it doesn't seem to be related to whether I read it in as a RAW
or a JPEG.

[Dale Thayer-2]

Wayne, Rob,

Thanks for the suggestions on fixing the problem.  In my case, Wayne's suggestion to upgrade the NVIDIA video drivers did the trick.  Thanks to Rob for the JAVA version suggestion.  I tried that also, but still had the corruption problem.