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Old Jan 8, 2008, 8:05 AM   #1
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Some of you might know my recent plight with some bad burns/discs of some of my photos taken in Japan. In short, I originally thought I'd lost about 2000 photos. Thanks to some tips from the fine folks here I have salvaged many shots via using other computers and such. Thanks again. However, there are three days worth of photos that I still am unable to retrieve as I get that "cyclic redundancy check" error. As some suggested here, I have used programs like Genuine Fractals and Alien Skin to try to help salvage some photos. This has come with mixed results. Some tollerable…some utterly horrid. I suppose that is expected with what I am dealing with.

I have narrowed down a couple hundred photos down to 15 I just can't seem to fix. I have tried a few things and still the images come out poor. Now, I know this is expected with the low res I am dealing with but I thought as one last desperate attempt to salvage my photos I'd turn to the pros here for a little help. Posted below are the 15 photos. I need them to be 4x6 so they fit in an album. Any tweeking on all or some or even one image you folks can do to them would be most helpful and very, very appreciated.

1. http://img.photobucket.com/albums/v3...o2BView2B9.jpg

2. http://img.photobucket.com/albums/v3...o2BView2B8.jpg

3. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_394132_9036.jpg


4. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389346_2455.jpg


5. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389213_4132.jpg


6. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389211_3557.jpg


7. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389201_656.jpg


8. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389198_9861.jpg


9. http://img.photobucket.com/albums/v3...89084_9014.jpg

10. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389075_6426.jpg


11. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389074_6109.jpg


12. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_389066_3511.jpg


13. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_362179_4727.jpg


14. http://img.photobucket.com/albums/v310/Viewaskewbian/Help/n724225243_362157_8655.jpg


15. http://img.photobucket.com/albums/v3...and2BSteps.jpg


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Old Jan 8, 2008, 9:21 PM   #2
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MrGarmonbozia writes: ...I have narrowed down a couple hundred photos down to 15 I just can't seem to fix. I have tried a few things and still the images come out poor.

Poor in what way?

I just downloaded the first image and aside for it being too small to print 4x6 as is, it looks okay to me.

I just changed the resolution to 240ppi (maybe not neccesary) and used the standard bicubic interpolation in Photoshop 7 to bring the printed size up to 4.5x6 and added some unsharp mask. I didn't print it, but the far bigger screen image still looked okay to me. The file size came out at 1.39MB.

If the rest of the problem shots are like this, I don't know why you're having so much trouble with them.

If you want people to actually change the photos also (color casts, contrast, saturation, etc.) you should put the request in the "Extreme Makeover" section to attract the "right" people for the job.

If you'd like to print the result to see how it looks to you, where do want it sent? I see that your personal info' does not include an email address.

Grant
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Old Jan 9, 2008, 7:21 AM   #3
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granthagen wrote:
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MrGarmonbozia writes: ...I have narrowed down a couple hundred photos down to 15 I just can't seem to fix. I have tried a few things and still the images come out poor.

Poor in what way?

I just downloaded the first image and aside for it being too small to print 4x6 as is, it looks okay to me.

I just changed the resolution to 240ppi (maybe not neccesary) and used the standard bicubic interpolation in Photoshop 7 to bring the printed size up to 4.5x6 and added some unsharp mask. I didn't print it, but the far bigger screen image still looked okay to me. The file size came out at 1.39MB.

If the rest of the problem shots are like this, I don't know why you're having so much trouble with them.

If you want people to actually change the photos also (color casts, contrast, saturation, etc.) you should put the request in the "Extreme Makeover" section to attract the "right" people for the job.

If you'd like to print the result to see how it looks to you, where do want it sent? I see that your personal info' does not include an email address.

Grant
Thank you for the tips but I am a bit slow on the uptake when it comes to techy stuff. Could you post STEP by STEP what you did in Photoshop to make your image. Bear in mind my Newb status. Also, YGM.
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Old Jan 9, 2008, 11:56 AM   #4
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What he did was enlarge the image using an interpolation algorithm (bicubic in this case), then sharpened the image using USM (Unsharp Mask).

Your photos are low resolution (around 1/3 of a Megapixel), which is going to result in pixelation with some printers and software.

Basically, your images will give you around 100 Pixels Per Inch.

For example, if the long side of your images is 600 pixels, and you're printing at a 4x6" print size, you'd end up with 100 pixels per inch of detail (600 pixels / 6 inches = 100 pixels per inch).

So, you tend to get pixelation with some printers trying to print with a resolution that low (where the individual pixels that make up an image start to become visible).

Some printer software and drivers will automatically "rez up" (or interpolate) the images for you. Basically, they add pixels that were not captured by the camera, based on the values of adjacent pixels to increase the width x height in pixels, so that you have a higher pixel density for printing.

That adds more pixels to the image. But, this technique will *not* increase detail. You've already "thrown away" the extra detail by downsizing the originals to less than 1/3 of a Megapixel.

But, this technique (enlarging an image via interpolation), can help with pixelation.

There are many different interpolation algorithms available. You mentioned trying Genuine Fractals (which is a popular commercial product for enlarging images via interpolation).

That should work fine for your purposes (or, as good as can be expected from low resolution images like this).

We have an entire forum dedicated to resizing/interpolation here:

Resizing / Interpolation Forum

Some methods tend to work better than others, depending on the image type. For example, I've got some Linux image editors that have the ability to use *very* advanced algorithms, that may take as long as 30 minutes to resize just one of your images to 240 pixels per inch (only a 240% increase) on a very fast PC.

But, you're probably not going to see a lot of difference between these algorithms and more common interpolation methods (bicubic, lanczos, etc.) for the print sizes you seem to want (4x6" prints for albums), and many algorithms will only take a split second to resize an image. Something like bicubic (what granthagen used in Photoshop for resizing) should be good enough for your purposes.

What software do you have? It sounds like you already have Genuine Fractals. I'd use it to enlarge the images to around 1440 x 960 pixels (around 1.4 Megapixels) for 4x6" prints and see what you get when you print them. That works out to around 240 pixels per inch, and should be good enough with most printers.

There are many free software packages that can interpolate your images for you, too.

For example, you may want to give Irfanview a try (it's free).

To use it for resizing, simply open an image using File>Open.

Then, use the menu choice you'll fine for Image>Resize/Resample.

Click the "Set New Size" box, make the longest side around 1440 pixels, with the "Preserve Aspect Ratio" box checked (so that it keeps the same ratio of width to height). I use Lanczos most of the time for the algorithm (you'll see a number of choices available from a drop down list).

Then, click OK and your image will be resized. To save it, just use the File>Save As menu choice and give it a new filename. You may or may not want to sharpen the images (or make other modifications) before saving.

You may also want to try a product like Mike Chaney's QImage Pro, which can use a variety of interpolation algorithms. It's designed to optimize the enlargement for a given printer type and print size.

http://www.ddisoftware.com/qimage/

We have a dedicated forum here for QImage:

Printing - QImage Support Forum

Mike Chaney (the author of QImage Pro and related products) also writes a monthly Tech Corner article, with lots of useful information.

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Old Jan 9, 2008, 2:52 PM   #5
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My reply....?

What JimC said.

Actually, I didn't mean what I did to be a tip, it's more of an offer to send you the file I came out with so that you could print it on your equipment to see if it looked any better than the results you've gotten via other methods up to this time. There wouldn't be much point in my explaining exactly what I did if the result does not meet your needs.

If you want, I'll explain it. I assume that you have some version of Photoshop or Photoshop Elements (which might have pretty much the same Image Size box as PS7).

So, how do you want it, m' man?

Grant
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