On Thu, May 26, 2011 at 9:50 AM, David J Brooks <[email protected]> wrote: > That is really good. I googled the names you put in your last post and > looked at the scripts. I did not understand the script thing at all. I > need more time to look into it and try to understand it. Slow learner > here. > > I did send her my version in PSCS using de speckle and curves with > some bluring of the uter edges to try and soften the lines left after > despeckle. Seems she is happy with that, HOWEVER
Ar hit send to quick. However i will forward your version to her as well. Thanks for the help folks, this has been an interesting 2 days. BTW the scan is taken of a picture of a picture, and the lines are in the second photo, not from scanning. I have marked this posting for future references. Dave > > On Wed, May 25, 2011 at 8:24 PM, Bruce Walker <[email protected]> wrote: >> On 11-05-25 4:20 PM, Bruce Walker wrote: >>> >>> On 11-05-25 11:17 AM, David J Brooks wrote: >>>> >>>> A good friend of mine has a scan of an old family photo in pretty >>>> rough shape and asked me last night if i could help fix it. I just got >>>> the scan a few moments ago: >>>> >>>> http://www.caughtinmotion.com/picture0001.jpg >>>> >>>> and had a quick look. I'm not even sure i know how to go about >>>> touching this up. I told he i would look and at least try. >>>> >>>> Any comments or help. >>>> >>>> She tried to send a large Tiff file but on dial up the 24mb photo >>>> would not load so she just sent me a 2.5 MB jpg. >>>> >>>> Any help is appreciated. >>>> >>>> Dave >>> >>> As others have pointed out, your biggest challenges are (1) removing the >>> paper texture, and (2) decreasing the softness. But it turns out that #1 >>> isn't as bad as generally thought, and #2 can be addressed too. >>> >>> The solution to the first problem lies with the FFT, or Fast Fourier >>> Transform. You convert your image into the frequency domain, look for >>> symmetrical mid and high frequency components that shouldn't be there, mask >>> them out and reconvert back to image space. >>> >>> You can uncross your eyes now. :) >>> >>> To prove that that works, here's your image after some processing I just >>> tried ... >>> http://dl.dropbox.com/u/2254722/picture0001-filtered2.jpg >>> >>> I used ImageMagick and "Fred's Scripts" (fftfilter, spectrum) to create >>> the image spectrum and process the image, and Photoshop to create the >>> filtering mask. >>> >>> You can deal with #2 by using Photoshop's Smart Sharpen filter set to do >>> "local contrast enhancement" style sharpening. Basically you crank the >>> Radius upwards to the range 16-32 and set the Amount down between 12% to >>> 25%. I tried two passes with that and got reasonable results (not shown in >>> the image above). >>> >>> Of course you also need to patch up the little places where the emulsion >>> has flaked away, but the PS clone brushes can easily handle that. >>> >>> HTH. >>> >>> -bmw >> >> OK, I took the FFT processed result and did some spot-cloning, noise >> reduction (Noiseware Pro), two passes of Smart Sharpening and finally levels >> to improve black level and contrast/brightness ... >> >> http://dl.dropbox.com/u/2254722/picture0001-filtered2a.jpg >> >> Printed at a modest size on metallic paper, this would probably look pretty >> good. >> >> -bmw >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. >> > > > > -- > Documenting Life in Rural Ontario. > www.caughtinmotion.com > http://brooksinthecountry.blogspot.com/ > York Region, Ontario, Canada > -- Documenting Life in Rural Ontario. www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ York Region, Ontario, Canada -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
