Unable to open saved JPEG images

I opened and modified several JPEG images with Photoshop CS2. Now none of these files can be opened by Photoshop or any other program. All of the files seem to have a non-zero size, but when I try to open them in Photoshop, it does not generate an error, it merely offers to create a new file with the same image properties (size, etc) as the saved image on disk.
I've also tried several other programs to open these files, and none of them can open them. FYI, one thing that all of the files have in common is that they are all saved with the absolute minimum compression settings.
Any assistance in helping me to recover these files would be greatly appreciated.
Thanks.

You can email me one of the Pics (zip it first) but it sounds like they are toast.

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Unable to Open Lossless JPEG Image

Hi,
I have jdk 1.6.0. and i installed the jai-Imageio pakage.i am not able view the true lossless jpeg
image.
I tried to open a lossless jpeg image from the code given in
http://forums.sun.com/thread.jspa?forumID=20&threadID=335960
but the
image does not open. It works for jpeg, jpeg2000 images. but not
lossless jpeg and jpeg-ls images..
when i try to code
String s[] = ImageIO.getReaderFormatNames();
for(int i=0;i< s.length ;i++)
System.out.println(s);
it prints
raw
BMP
JPEG2000
RAW
jpeg
tif
jpeg2000
WBMP
GIF
TIF
TIFF
jpg
bmp
PNM
JPG
pnm
wbmp
png
JPEG
PNG
jpeg 2000
JPEG 2000
gif
tiff
if i try to load lossless jpeg image it shows the exception that
but when i write code like
CLibJPEGImageReaderSpi cl = new CLibJPEGImageReaderSpi();
String s[] = cl.getFormatNames();
for(int i=0;i< s.length ;i++)
System.out.println(s[i]);
it prints
jpeg
JPEG
jpg
JPG
jfif
JFIF
jpeg-lossless
JPEG-LOSSLESS
jpeg-ls
JPEG-LS
if i check with 'cl.canDecodeInput(imageInputStream)' it returns true.
i d't now how to load the image using 'CLibJPEGImageReaderSpi' class object
or is there any other way to load the image ?
can anybody write the full code to display the true lossless jpeg image
which is taken from dicom medical images. the images are available at
http://rapidshare.com/files/250911269/Lossless_jpeg.zip.html
is there any website has good tutorial about lossless jpeg image. what
is point transform in lossless jpeg ? what old pseudo lossless jpeg ?
what is equivalent for that in java ?

There are two images in that zip file. I have no problems reading the one called "lossless.jpg". It's a 16-bit grayscale image that's completely black. The one called "test.jpg" throws an exception. Is this what you're getting? I'm using JAI-ImageIO 1.1
is there any website has good tutorial about lossless jpeg image. what
is point transform in lossless jpeg ? what old pseudo lossless jpeg ?
what is equivalent for that in java ? In addition to describing normal jpeg encoding, the jpeg specification also describes what's called "lossless jpeg" encoding. Lossless jpegs - as described in the original specification - are obsolete. No common application can open them. It doesn't help that the png format (also lossless) provides much smaller file sizes then lossless jpeg's.
Both of the jpegs in that zip file are lossless jpegs. Incidently, I can't open them up with Irfanview or Adobe Photoshop CS4 (wich says alot). And I can only read "lossless.jpg" with JAI-ImageIO while the other one throws an IOException. By using lossless jpegs, the user cripples portability.
JPEG-LS is different from lossless jpeg. In fact, it was meant to replace lossless jpegs. While not actually lossless, jpeg-ls is described as a "near lossless" compression. I believe the files have a +.jls+ extension instead of a +.jpg+ one. While not obsolete (I think), JPEG-LS is not widely used. Using it can still cripple portability.
The JPEG2000 format also has a "lossless" mode, that again, is not widely used. Using it can still cripple portability. JPEG2000 files have a +.jp2+ extension.
Lastly, I don't know what you mean by this question
what is point transform in lossless jpeg?PS: I have no problems reading a lossless jpeg or a jpeg-ls that I write with JAI-ImageIO. So maybe there's something wrong with "test.jpg" in the zip file?

I am unable to open up an image on CS5

I am unable to open up an image on CS5 - any suggestions? I can see it is the small tool box window but not as a full screen!! Help!!

Please be as specific as you can about the image specs - file type, dimensions, etc.
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When I open a jpeg image at 100% is too large to see. How can I change the percentage to be able to view document?

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I tried opening a JPEG image, using "Open As" function into Camera Raw in Elements 5.0 Editor and I receive a "program error" message. How can I change settings or otherwise enable Elements 5.0 to open a JPEG into Camera Raw?

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The only recent that happened on my Mac was that some fonts had to be cleaned up b/c of an issue with Office for Mac but I can't imagine that has any relationship?
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Bernice

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Find a JPG file on the desktop and right (or control) click it.
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Unable to open saved edited jpeg image

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Change IMG_****.jpeg copy to IMG_****copy.jpeg

Pse8 - open several jpeg images in raw

I have achieved this 2x but unable to do so consistantly, i open folder/files with organizer - file>get photo videos>from files folders; select all, click fix>full edit and mostlyl all photos open as jpeg individual photos not in RAW - help dave h

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Opening & Saving JPEGS in Camera RAW

I just started using Photoshop ( version CS3) and am concerned that I'm doing things incorrectly already.
I'm not doing any huge retouching work, but am using camera RAW to open and clean up some JPEG files. I'm just doing a bit of re-white balancing, etc.
I've noticed that when I save the files ( again as Jpegs) they seem to be reduced from around 5mb files to 1.5mb files. When I open the reduced sized files in Photoshop and/or Mac Preview they are the same resolution and dimensions as the larger files, but it seems that somehow the file is being compressed.
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Thanks, Gllenn

In the Save dialogue in camera raw, when you choose JPEG and choose maximum quality it sets the level to 10, but you can change that number to 12 if you want to. I just tried it with my setup. With the quality level set at 10 the file size was 2.51 MB, with it set at 12 the file size was 5.76 MB. The difference is in the amount of compression that is being applied to the pixels when the image is saved. If you want maximum quality from your JPEG images I would suggest changing that setting to 12, although it will probably be very difficult for you to see any difference.

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Unable to process Lossless JPEG Images..

Hi,
I have jdk 1.6.0. and i installed the jai-Imageio pakage.i am not able view the true lossless jpeg
image.
I tried to open a lossless jpeg image from the code given in
http://forums.sun.com/thread.jspa?forumID=20&threadID=335960
but the
image does not open. It works for jpeg, jpeg2000 images. but not
lossless jpeg and jpeg-ls images..
when i try to code
String s[] = ImageIO.getReaderFormatNames();
for(int i=0;i< s.length ;i++)
System.out.println(s);
it prints
raw
BMP
JPEG2000
RAW
jpeg
tif
jpeg2000
WBMP
GIF
TIF
TIFF
jpg
bmp
PNM
JPG
pnm
wbmp
png
JPEG
PNG
jpeg 2000
JPEG 2000
gif
tiff
if i try to load lossless jpeg image it shows the exception that
but when i write code like
CLibJPEGImageReaderSpi cl = new CLibJPEGImageReaderSpi();
String s[] = cl.getFormatNames();
for(int i=0;i< s.length ;i++)
System.out.println(s[i]);
it prints
jpeg
JPEG
jpg
JPG
jfif
JFIF
jpeg-lossless
JPEG-LOSSLESS
jpeg-ls
JPEG-LS
if i check with 'cl.canDecodeInput(imageInputStream)' it returns true.
i d't now how to load the image using 'CLibJPEGImageReaderSpi' class object
or is there any other way to load the image ?
can anybody write the full code to display the true lossless jpeg image
which is taken from dicom medical images. the images are available at
http://rapidshare.com/files/250911269/Lossless_jpeg.zip.html
is there any website has good tutorial about lossless jpeg image. what
is point transform in lossless jpeg ? what old pseudo lossless jpeg ?
what is equivalent for that in java ?

You can email me one of the Pics (zip it first) but it sounds like they are toast.

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When I email photos from iphoto(9.2.2) the recipients are unable to open the jpegs - why?

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Thanks in advance,

Thanks mkoryak
Thats a nice workaround.
I have one question (might be a dumb one!!). When we set the Content-Disposition as attachment in http header, and the user click on the file, a dialog box appears asking the user if he wants to save the file or open using a application (windows fax viewer). Is there a way we can make windows fax viewer to open files by default if the type is jpeg / bmp, without that dialog box appearing.
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regards,
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Unable to open saved JPEG images

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