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Posts for: Voyager1
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Mar 1, 2017 14:27:09   #
DirtFarmer wrote:
I tried imagej and got the following result:
Starting with an image scanned from a print on patterned paper
http://small-farm.org/images/Test/1.jpg
Loaded it into imagej and hit "process", then FFT, then chose FFT
http://small-farm.org/images/Test/FFT1.jpg
The hexagonal pattern gives dots on the FFT in a hexagonal pattern. I draw a box around the inner ring of dots one at a time and hit ctrl-x, which erases the dot.
http://small-farm.org/images/Test/FFT1A.jpg
Then hit "process", then FFT, then chose Inverse FFT
http://small-farm.org/images/Test/1A.jpg
The resulting image has much of the pattern removed, but there is still a small pattern left behind
So I take the FFT and erase as before the next ring of dots
http://small-farm.org/images/Test/FFTB.jpg
And take the inverse FFT as before
http://small-farm.org/images/Test/1b.jpg

DO NOT REMOVE THE CENTER DOT. It contains the photo information.
http://small-farm.org/images/Test/FFT1c.jpg
http://small-farm.org/images/Test/1c.jpg
I tried imagej and got the following result: br St... (show quote)


There is a brush tool in the menu. Double click it and a dialog box opens to allow you to specify the size of the brush and the color. Select any size that completely covers the dot or star; choose black as the color. Simply place the crosshairs over the star and click to place a black circle over it. I have found that blacking out even the very tiny and faint markings can improve the programs ability to remove the texture. Also, it seems to work better on JPEGs than TIFFs.
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Feb 28, 2017 17:32:44   #
rgrenaderphoto wrote:
Post before and after?


Here is a before and after example. This is a snapshot of the Queens Center Shopping Mall under construction circa 1971 or 1972. The Elmhurst Gas Tanks are barely visible in the distance.

The only work done on this image is to run it through the FFT/IFFT process in ImageJ.

I have some where the texture is much worse than this and the result is not so good but better than the original.

Original

(Download)

ImageJ output

(Download)
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Feb 28, 2017 09:52:44   #
Voyager1 wrote:
Thanks for the link. There are a few fft projects listed there. Do you have a preference?


I downloaded and installed ImageJ last night. In my not so exhaustive test (one JPEG), it diminished the texture quite a bit. The original looked like an image covered in bubble wrap. Before any further retouching, it still has a slight honeycomb texture. I think I can live with that at least for now.

Thanks again.
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Feb 28, 2017 09:42:27   #
MCHUGH wrote:
Have you considered copying them? I know you are interested in scanning them but in copying you can eliminate most if not all the texture surface by setting up polarized light from opposite sides of the print and using a polarizing filter on your camera. By turning the filter you can see the texture disappear. You have to make sure in both lights that the filter are oriented the same. This will also eliminate old prints that have silvered over the years. You will see detail in them that you can not see otherwise.
Have you considered copying them? I know you are ... (show quote)


I would love to try this approach but I don't have the lights, filters or the space. Thanks for your suggestion.
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Feb 27, 2017 15:16:33   #
rgrenaderphoto wrote:
Download a trial copy of Topaz Clarity and Topaz Simplify. Both have filters that will selectively smooth portions of the image.


Thanks. I will check them out. Will either or both work on the entire image?
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Feb 27, 2017 14:35:25   #
rmalarz wrote:
You might want to look at ImageJ software.
https://imagej.nih.gov/ij/
--Bob


Thanks for the link. There are a few fft projects listed there. Do you have a preference?
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Feb 27, 2017 14:22:51   #
letmedance wrote:
Have you tried the noise filter in Photoshop. You can use despeckle and or dust and scratches.


Yes. I have used both of these on several test photos. The result only diminishes the problem slightly, it does not remove it.
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Feb 27, 2017 14:05:11   #
I have Adobe CC for Photographers and I am running it on a 64-bit Windows 10 PC.

I have several hundred 30 to 40 year-old photos that were printed on textured paper. When I scan them the texture stands out and detracts from the image; in some cases, it seriously degrades the image.

I have read about using Fast Fourier Transform plugins to remove the texture without spoiling the image and have viewed several YouTube videos that demonstrate the capabilities of these plugins. None of the videos names a product and most, if not all, were run on MAC's. Most of the offerings on the Web that I have found are for MAC's, are hosted on insecure sites, or are 32-bit versions that are 4 or 5 years old, therefore having questionable compatibility with Photoshop 2017. I am not interested in any of these options.

Can any of you recommend a trusted site that has a recent Photoshop CC-compatible version for 64-bit Windows?

Outsourcing the job would be a last resort since most of these pictures are irreplaceable and I don't want to chance having them lost or damaged in transit.

Thanks for your help.
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Oct 17, 2016 11:57:46   #
Howard5252 wrote:
I will say at the outset, I'm glad I went; it was a great experience. The photos are somewhat disappointing. For the most part, the animals a either standing still or walking and the photos begin to get repetitious. I would suggest taking some video, at least the animals will be moving. Yes, there will be some exciting images like the big cats dining on a carcass or a croc attack on Wildebeest, or a leopard sitting in a tree but for the most part, the shots will be mundane. The video that I took was more interesting than most of the stills.
I will say at the outset, I'm glad I went; it was ... (show quote)


I was in northeast Tanzania, by the abandoned Sinya mines, very close to the Kenya border prior to visiting Tarangire, Ngorongoro and Serengeti in May of this year. We happened on a quartet of cheetah that were playing and lounging. Our guide opined that they were probably a female and her three almost full-grown offspring. They looked very well fed and that probably contributed to their relaxed demeanor. I got some stills of the cats in full stride chasing each other and some of the younger ones practicing there hunting skills on each other. The images may be static but they convey enough of a sense of motion to trigger the memory of spending the better part of an hour and a half observing them. I also have pictures of a large bull elephant bluff-charging our vehicle.

For those of us crossing items off our bucket list, the pictures (which will never be of sufficient quality for Nat Geo or any other publication) are a memory aid. Until Alzheimer's sets in, they are good enough to bring back the feeling I experienced.
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Oct 12, 2016 19:12:26   #
jeanbug35 wrote:
Nice shot.


Thanks. Not bad for a half blind guy with an entry level DSLR and a kit lens, if I do say so myself.
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Oct 12, 2016 19:10:44   #
sailorsmom wrote:
Beautiful image, Voyager1!


Thanks.
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Oct 11, 2016 08:53:09   #
Carolina Wings wrote:
Great capture Voyager!!


Thanks. I appreciate the kind words.
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Oct 11, 2016 08:05:49   #
Charmdragon wrote:
Download view is exceptional. Interesting that his/her pads look to have almost no wear and tear, and how white the teeth between the fangs are. Well done.


Based on the rosettes (spots) on her flanks and legs and the pink color in her nose, she appears to be less than four years old, probably closer to three. The rosettes will fade and the coloration of the nose will change to all black as she ages.

Thanks for taking the time to view this picture.
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Oct 10, 2016 09:35:40   #
I took this picture in Serengeti National Park, Tanzania in May, 2016.


(Download)
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Jun 22, 2016 09:46:26   #
Bultaco wrote:
Well done, what tour group did you do with?


We used Overseas Adventure Travel.

Our lodgings were on private game reserves(Sinya, Lake Manyara, Ngorongoro) or in Serengeti national park for 12 of the 15 days that we spent actually in Tanzania. We stayed in transient tented encampments most nights but had a few nights in a more permanent site situated on elevated platforms. We were very happy with all of the accommodations and all meals were included. The food was great especially since many meals were prepared in the boonies under less than ideal conditions - basic camp stoves, camp fires, etc.

We went in May at the tail end of rainy season but only had a brief shower on one day as we arrived back at camp in the Serengeti. The camp staff met us at the car park and handed out umbrellas for the 100 meter walk to the dining tent. Most days started out with a heavy overcast but normally by 10:00 am or so the sun broke through. Our driver/guides were exceptional. Not only did they have a great deal of knowledge about the animals but also they could spot leopards and lions in trees at great distances. In the Ngorongoro Crater, our guide identified a black rhino in the distance. To me, it looked about the size of a sesame seed.

Everyone that we met in Tanzania was friendly and aiming to please their guests. This was my wife's first experience "roughing it" unless you consider a Hyatt roughing it. She now wants to do Botswana, Zimbabwe and Zambia!

Sorry for running on.
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