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FFT Filter for Photoshop CS4

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  #11  
Old 07-26-2010, 02:50 PM
kmmbkworm kmmbkworm is offline
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Re: FFT Filter for Photoshop CS4

Thanks, I spoke with my client and he agreed for me share the image. I am going to upload the original scan plus the one I completed w/o FTT and the one with FTT. On the image I tried alone and in various combinations Median, Surface Blur, Smart Blur, Gaussian Noiseware, Portraiture, and now FTT. To sharpen, I tried various settings of Unsharp Mask as well as High Pass. Again, I think the problem is I wanted a miracle and there just isn't one for this image, it was too out of focus going in plus the paper texture to contend with on the images.
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File Type: jpg GFCompleteFTT2.jpg (59.0 KB, 107 views)
File Type: jpg B-G-ChurchAisle.jpg (84.3 KB, 108 views)
File Type: jpg FGOriScan.jpg (64.8 KB, 108 views)
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  #12  
Old 07-26-2010, 05:29 PM
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skydog skydog is offline
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Re: FFT Filter for Photoshop CS4

If anyone works on this...pls share the details...thanks
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  #13  
Old 07-26-2010, 08:22 PM
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TommyO TommyO is offline
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Re: FFT Filter for Photoshop CS4

kmmbkworm,

Given the quality of the original, I think your results look just fine. I rather doubt you are going to be able to get it much better. That's just the unfortunate part of dealing with such small images from small cameras. The FFT filter seems to have done quite well. You'll also notice in your overall scan, in the uploaded jpg, that much of the texture appears to be gone. That is the result of another method that works with compressing then resizing the image. It has the effect of averaging the pixels, while retaining some of the edge detail of the actual good parts.

You could attempt to hand paint some of the small detail in the cropped images, but since you're working on someone else's dollar, they may not wish to pay for that. It also depends upon your artistic abilities as to how well that comes out. For me, that means no so much. I usually keep it fairly simple and short. I happen to like much of the work by Florin here on RP. You could do something similar, but less substantial to bring out some of the missing information... see example of dress attached... nothing spectacular, just an example.
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File Type: jpg GFCompleteFTT2-to.jpg (83.9 KB, 76 views)
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  #14  
Old 07-26-2010, 09:25 PM
kmmbkworm kmmbkworm is offline
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Re: FFT Filter for Photoshop CS4

Thanks so much for your help. I had totally forgotten about compression and resizing. I think Katrin Eismann discusses that in her books and on her training DVD but I sure did not think of it. Yes, the FFT Filter is impressive and it will be used on future projects. I am going to submit what I have to the client but if he does not like the results this time, will just let it go. Have other client projects waiting and have put way too much time in for this client. Again, am so glad I found Retouch Pro and I will be back. Who knows, maybe I will be able to help someone else down the road.
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  #15  
Old 07-26-2010, 09:53 PM
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Craig Walters Craig Walters is offline
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Re: FFT Filter for Photoshop CS4

since this is more about fft than photoshop, i'm moving this thread to the restoration forum. you might also look at the rgbfft and rgbifft filter. it's a bit easier to use, if i remember correctly... or did someone mention or link to that already?
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  #16  
Old 07-28-2010, 05:49 PM
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Southbay Southbay is offline
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Re: FFT Filter for Photoshop CS4

On a Mac, you'll want to use the FFT process offered by http://rsb.info.nih.gov/ij/
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  #17  
Old 07-28-2010, 05:52 PM
kmmbkworm kmmbkworm is offline
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Re: FFT Filter for Photoshop CS4

Thanks for the link. I will check into it tonight. While the filter I installed on my husband's PC seems to be working fine, my husband would really prefer I have a working filter on my own Mac.
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  #18  
Old 03-28-2012, 06:00 PM
pmiles pmiles is offline
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Re: FFT Filter for Photoshop CS4

Quote:
Originally Posted by kmmbkworm View Post
<snip>I did download Imagej on my Mac but did not get the results I had hoped for with the image.
I am a Mac user too, but don't have access to a PC.
Did some tests with a color half toned image. Working directly on the color image image inside of imagej using FFT filtering didn't work very well in removing the halftone screen.

iImagej worked really well if I worked on a grayscale copy of the half toned color image did the fft filtering and then pasted the result as a layer back above the original color image with a blend mode of luminosity. A slightly blurred copy of the underlying image helped reduce color noise.
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