Thumbnails Not Showing in Browser

I have a portion of my library archived to DVD - masters are offline. I cannot view the associated thumbnail previews in the browser. They are grayed out but can be brought up in the viewer, and show the low resolution version of the image.
I recall being able to view them at one time, but now the previews are all grayed out. Why and what can I do about it? Thanks.

I realized the problem is nothing to do with the code...thanks anyway...

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Thumbnail not rendered in browser

I lifted code posted in this forum for creating a jpg thumbnail courtesy of
--Dmitri Don
http://forum.java.sun.com/thread.jspa?threadID=223186
and it works fine to make a nice sharp image.
I am having a problem with certain thumbnails not showing in the browser. I suspect the size is the culprit but I AM NOT AN IMAGE EXPERT--and have little experience with these APIs. I would deeply appreciate someone's help on this. The thumbnail is being produced, I jsut cannot get the browser to show it for certain files.
An example for a non working versus working is as follows:
-working-:
-original -96KB JPEG
thumb-I can see size=4014bytes, dimension=100X75 px, type=JPEG and created/modified dates in BROWSER properties(right click)
-non working-:
original -670KB JPEG
thumb-size=Not Available, dimension=20X30(!??) px, type=Not Available and created/modified dates=Not Available in BROWSER properties(right click)
When I open the 'non-working' thumbnail in an image editor it has normal properties: size=22500bytes, dimension=100X75 px, type=True Color 24 bit(in MS photo editor)
the code I am using to generate the thumbs:
try {
File originalFile = new File(pathToOriginal);
ImageIcon ii = new ImageIcon(originalFile.getCanonicalPath());
Image i = ii.getImage();
Image resizedImage = null;
int maxSize = 100;
int iWidth = i.getWidth(null);
int iHeight = i.getHeight(null);
if (iWidth > iHeight) {
resizedImage = i.getScaledInstance(maxSize, (maxSize * iHeight)
/ iWidth, Image.SCALE_SMOOTH);
} else {
resizedImage = i.getScaledInstance(
(maxSize * iWidth) / iHeight, maxSize,
Image.SCALE_SMOOTH);
// This code ensures that all the
// pixels in the image are loaded.
Image temp = new ImageIcon(resizedImage).getImage();
// Create the buffered image.
BufferedImage bufferedImage = new BufferedImage(
temp.getWidth(null), temp.getHeight(null),
BufferedImage.TYPE_INT_RGB);
// Copy image to buffered image.
Graphics g = bufferedImage.createGraphics();
// Clear background and paint the image.
g.setColor(Color.white);
g.fillRect(0, 0, temp.getWidth(null), temp.getHeight(null));
g.drawImage(temp, 0, 0, null);
g.dispose();
// sharpen
float[] sharpenArray = { 0, -1, 0, -1, 5, -1, 0, -1, 0 };
Kernel kernel = new Kernel(3, 3, sharpenArray);
ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
bufferedImage = cOp.filter(bufferedImage, null);
/* write the jpeg to a file */
File file = new File(pathToWrite);
FileOutputStream out = new FileOutputStream(file);
/* encodes image as a JPEG data stream */
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
com.sun.image.codec.jpeg.JPEGEncodeParam param = encoder
.getDefaultJPEGEncodeParam(bufferedImage);
param.setQuality(0.7f, true);
encoder.setJPEGEncodeParam(param);
encoder.encode(bufferedImage);
catch exception...
thanks
sgv

I realized the problem is nothing to do with the code...thanks anyway...

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While nearing completion of my project I published the iMovie file to the Media Browser so I could access in GarageBand and work on the soundtrack. When I returned to iMovie to edit it further I noticed none of the thumbnails were showing. The project seemed intact. I rolled over each clip and everything worked as it should.
I began to edit the project and was prompted that I would have to re-publish the project again. This is as it should be. However, once I began editing the clips again all the thumbnails changed from blank to the image of the photo I just imported from iPhoto. All of them changed.
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Applet not showing in browser OR appletviewer window not appearing

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wh

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edit
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Nikon Df Nef File Thumbnails not showing in Adobe Bridge CS5

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I am having trouble getting NEF thumbnail to show in Bridge CS5, but only from the Nikon Df. All other, older, NEF files are showing up without a problem
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Ok thanks for that, at least I wont be chasing my tail.
I did install the DNG converter 8.3 but I still NEF files as a NEF icon. Any clues to what I may not be doing right there?

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Recently I upgraded my Acrobat professional (part of the CS3 Design Premium Package) to version 8.1., and now the thumbnails in the windows explorer on PDF files are not showing anymore (in some files). It's only showing a simple sheet with the acrobat logo inside. Is there any way to bring them back?
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I have the same problem mentioned in the original post of this thread. It looks like the first reply misunderstood the issue. It is this:
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Before someone suggests it -- yes I have unchecked "Always show icons, never thumbnails" in the folder options dialog for Explorer. So that is not the problem here.
I have read hints about a fued between Adobe and Microsoft that brought this situation about. I am disappointed that Adobe is willing to punish their customers (again) as part of this battle.
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Exactly how did you restore the iPhoto library?
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In the split view I see nothing when I select the project. When I select one of the albums below it the pictures show up in the lower line but not the upper part unless a lower one is selected.
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Ok thanks for that, at least I wont be chasing my tail.
I did install the DNG converter 8.3 but I still NEF files as a NEF icon. Any clues to what I may not be doing right there?

Windows 8.1 thumbnails not showing in explorer

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Any ideas?
Thanks
why767

Hi,
Have you make any change to your system before this problem occures? Especially install new program.
You can try to perform a Clean Boot to check whether this problem caused by 3rd program or service start with system. Refer to the link below for more details.
http://support.microsoft.com/kb/929135
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Image Gallery Magic Thumbnails Not Showing

I have an existing page which I've added a new gallery to.
The gallery
looks fine in Dreamweaver but as soon as it's viewed in IE
the thumbnails do
not show up. If I select the encoding of the page to "none"
all works fine
with the gallery but my DIV tags don't works properly, i.e
they don't
center. I have uploaded an example of my page:
www.bluchip.gg/bc458a.htm
Any ideas?

Hi Warren,
Your style sheet has errors in it. Replace your style sheet
with a fresh
default one.
Al Sparber - PVII
http://www.projectseven.com
Extending Dreamweaver - Nav Systems | Galleries | Widgets
Authors: "42nd Street: Mastering the Art of CSS Design"
"Syztemlord" <[email protected]> wrote in
message
news:fr67fr$7oh$[email protected]..
>I have an existing page which I've added a new gallery
to. The gallery
> looks fine in Dreamweaver but as soon as it's viewed in
IE the thumbnails
> do
> not show up. If I select the encoding of the page to
"none" all works
> fine
> with the gallery but my DIV tags don't works properly,
i.e they don't
> center. I have uploaded an example of my page:
>
>
http://www.bluchip.gg/bc458a.htm
>
> Any ideas?
>

Newly imported thumbnails not showing previews

Today when I was importing images off a memory card I noticed the thumbnails in library mode were not showing any previews, they were blank (gray) for only the recently imported items. My other folders' thumbnails are showing previews with no issue.
I am working in Lightroom 4. I am using Windows 8 on a HP laptop.
A couple of other notes about what I noticed...
1. In the import screen the thumbnails display the preview.
2. Once the import goes to the Library Mode - thumbnails are blank. Can only see the image number and any symbols indicating tags or changes to the image.
3. Loupe view I cannot get an image to appear.
4. In the Develop Mode if I click on a thumbnail down in the filmstrip (which are all blank) an image will appear in the work area and the filmstrip thumbnail will display a preview of the one I selected. The thumbnail preview will remain visible for a few moments after moving to a new image. Then it just goes blank again.
5. I was importing jpegs and dngs. Having the same problem with both of these today.
6. All the other thumbnails in folders that were in the catalog prior to today are visible and working normally.
I am wondering how to fix this problem of newly imported images not displaying an image in the thumbnail whether it is in Library Mode, Loupe View, or Develop mode.
Thank you for any help you can provide.

I'd delete the preview cache and rebuild - that may help (or it may not).
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PS - delete entire .lrdata folder, but do NOT delete .lrcat file or anything else.
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Thumbnails not showing

Hi,
I just purchased and installed Lightroom 5.3 on my Win 8.1 Asus UX32VD and the preview thumbnails are not showing as you can see in the screenshot below, and as described in this page: http://helpx.adobe.com/lightroom/kb/photos-appear-black-gray-rectangles.html
I have gone through the steps described and had no joy.
Thanks, Jamie

Exactly how did you restore the iPhoto library?
LN

Thumbnails Not Showing in Browser

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