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» Flare Sci-Fi Forums » Sci-Fi » Designs, Artwork, & Creativity » Making pictures readable..

   
Author Topic: Making pictures readable..
Harry
Stormwind City Guard
Member # 265

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What's the best way of making small text on bitmaps readable? Especially the registration numbers and names of some ships. Some people tend to get quite good results (ie. USS Jupiter topic).

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"Dynamics is like playing hockey with a flexible hockey stick"
-My Physics teacher
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Titan Fleet Yards - Harry Doddema's Star Trek Site



Registered: Dec 1999  |  IP: Logged
Shik
Starship database: completed; History of Starfleet: done; website: probably never
Member # 343

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Scan large. Use high resolution.

For that picture, I asked Jadz to only highlight the hull number & to scan at 150 dpi. I always scan at 150 dpi.

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"Omigod. Singing meat. This is altogether too much."


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Michael Dracon
aka: NightWing or Altair
Member # 4

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150 is reasonably high. If you can try scanning just a part at 300 or even 600.

As for post-scanning enhancing, try the 'sharpen' or 'emboss' option.

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Buffy: "See, this is a school. And we have students and they check out books and then they learn things."
Giles: "I was beginning to suspect that was a myth."
- Buffy: The Vampire Slayer


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Ritten
A Terrible & Sick leek
Member # 417

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You can also vary the contrast/brightness and changing hues, but using high resolution is the best. For smaller sections a higher res of 600 to 1200 will bring out plenty of detail.

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Fabrux
Epic Member
Member # 71

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Er, correct me if I'm wrong, but isn't 300-600 dpi higher than 150? I can go as high as 19200 dpi on my scanner.

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Hunt: "You cheated!"
Rhade: "It's only cheating if you get caught."
-Andromeda, "Double Helix"


Registered: Mar 1999  |  IP: Logged
TSN
I'm... from Earth.
Member # 31

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Fabrux: Yes, higher dpi numbers are higher resolutions. That's what everyone said...

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"What he did to that walrus gentle-man was inexcusable."
-T. Herman Zweibel on "Mr. Woodrow Wood-pecker", The Onion, 7-Nov-2000


Registered: Mar 1999  |  IP: Logged
Fabrux
Epic Member
Member # 71

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Boy, don't I feel sheepish.

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Hunt: "You cheated!"
Rhade: "It's only cheating if you get caught."
-Andromeda, "Double Helix"


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Bernd
Guy from Old Europe
Member # 6

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Sorry for the pedantic nitpicking, but a higher dpi number (as given by the density of pixels) merely means a higher sampling rate while the true resolution (the capability of reproducing details) may be lower. Actually, such nasty things as diffraction and aberration won't allow a scanner to resolve more than about 600dpi. If they say "1200dpi optical resolution" (because they have 1200 pixels in one inch), this is already oversampling. If even a higher resolution is given, you get a higher oversampling rate and still a slight improvement of the image (for example, suppression of moir� patterns), but more than 300dpi for a magazine and more than 600dpi for a photo (1200dpi if you want the best result) usually isn't worth the trouble. If it's necessary to increase a picture for print, you can as well blow it up in your painting program.

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"Species 5618, human. Warp-capable, origin grid 325, physiology inefficient, below average cranium capacity, minimum redundant systems, limited regenerative abilities."
Ex Astris Scientia


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Nim
The Aardvark asked for a dagger
Member # 205

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Lt. Yar, 1200dpi optical resolution, engage!
Registered: Aug 1999  |  IP: Logged
   

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