How to Resize Photos?

Discussion in 'Coin Chat' started by raider34, Jan 14, 2009.

  1. raider34

    raider34 Active Member

    Hey guys got another question here.

    I was interested in resizing, and maybe even clearing up some photos of coins I've seen on ebay to get a better view of the coins. I've seen a few times on here people have resize a photo and make it look much better. Any specific programs you use.

    Thank you, Mike
     
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  3. Just Carl

    Just Carl Numismatist

    Most people play around with Photoshop. I've got it and figure I'll be about 150 years old before I can use that one.
    There are tons of photo programs out there. Many are free by downloading.
    I use one called Photoworks. The company that made that one is gone now.
    I also use Microsoft Picture It, Digital Image Pro
    I used to have one called Dark Room but it was for Windows 98 and when I upgraded to XP it no longer works.
    Not sure but some tell me you can use Nero to do those things but I only use that one to make copies of CD's
    I also have Coral Photo Album 6. That one came free when I purchased a Compact Flash Card for my cameras.
    I also have MGI Photo Suite SE and find it is one of the easiest for people like me to use.
    I'm sure there are many others available. Probably go to Google and just type in Digital Photo Programs.
    There is a forum for electronic stuff called the www.avsforum.com Hopefully that is the correct address. It is mostly about TV's, Radio, Digital conversions, cameras and on and on and on. Well over 500,000 members. You might want to go there and see if any of those electronic peopel know anything.
     
  4. kanga

    kanga 65 Year Collector

    I would find it VERY interesting if someone could continually take an image, resize it to 200% and make it look good.
    Everytime I try it starts to pixelate.
     
  5. snaz

    snaz Registry fever

    I STRONGLY recomend www.paint.net it's free and super easy to use. When you download it ... ctr + r will let you resize it. ;)
     
  6. breakintheweb

    breakintheweb Senior Member

    This could be done fairly easy with the ebay api and imagemagick


     
  7. GDJMSP

    GDJMSP Numismatist Moderator

    That's because you start off with pics that are too small to begin with. To get quality pics you need to take them with high resolution and save them in a non-degrading file type like a .tif file.

    This means you have a very large pic, but then you crop and resize (shrink the pic in other words) until you have a manageable size, and then save it as a .jpg file.

    If this proceedure is followed the pics can be blown up to 400% without pixilation.
     
  8. mrbrklyn

    mrbrklyn New Member

    http://www.gimp.org

    That is the gold standard. You'll want to convert the image from a JPG to a TIF, BMP, or PNG file first before manipulating it.

    Ruben
     
  9. kanga

    kanga 65 Year Collector

    True, but even a lossless format (.png?) has an upper limit.
    If you collect at 1200 dpi, then anything above 1:1 is going to pixelate.
    But I think my neighbor has some s/w that somehow does pixel smoothing(?)/averaging(?) so that he CAN go above the upper limit.
    But there's GOT to be something lost when you do that (sharpness?)
    You can't get something for nothing (unless you buy from China.)
     
  10. mrbrklyn

    mrbrklyn New Member


    the thing about the lousey formats like JPG, the distortion is more than pixelation. Even if you just resave the file at the same size using that algorithm, with ever pass you lose image fidelity, like an analog casset tape.

    Ruben
     
  11. mrbrklyn

    mrbrklyn New Member

    you need a front end for imagemagick. Are you going to write perl programs?

    Ruben
     
  12. breakintheweb

    breakintheweb Senior Member

    I wrote the following in a few minutes using php.

    http://cointrends.org/ebay_enlarge.php?ebay=320331227915

    It takes an ebay auction id number and returns the original and enlarged/sharpened main pic


     
  13. flyers10

    flyers10 Collector of US Coinage

  14. raider34

    raider34 Active Member

    Thak you for all the help. I downloaded Paint.net and it works great, and it's easy to use.
     
  15. Just Carl

    Just Carl Numismatist

    OH I forgot that one. Yes I have that and it is pretty good and free.
     
  16. mrbrklyn

    mrbrklyn New Member

  17. Hobo

    Hobo Squirrel Hater

    I swear by Irfanview. It is powerful yet easy to use. And it is free. You should be able to download it here.
     
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