How a scanner works. - Page 2 - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Monitors, Printers and Peripherals
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 09-15-2004, 05:27 PM   #11 (permalink)
True Techie
 
Join Date: Jul 2004
Posts: 170
Send a message via AIM to Spartan 1394
Default

Try this link. Might be what you're looking for.
__________________

__________________
<img src=\"http://img.photobucket.com/albums/v210/alienhunter2049/Mysig.png\">

\".......die screaming with sharp things in your head\"

Proud Bush supporter.
Spartan 1394 is offline  
Old 09-15-2004, 05:33 PM   #12 (permalink)
Wizard Techie
 
Join Date: Apr 2004
Posts: 3,247
Default

um, what info are you looking for EXACTLY. I dont know ALOT about optical scanners, but can tell you the basics of what I know, and if you need anything more indepth, I may know that, too. Anyhow, it uses a grid and each box in a grid for things like grey scale are then divided into 24bit per box, after all boxes are filled (with, I assume, all 0's in 24 bit representing pure white) with needed values it saves it as a .bmp file. The CCD is a light and intensity detector to determine scales of luminous from the image. Resolution is how dense the above bit map image is (as in, how many boxes total in the grid), bit depth is how many bits are used per box/pixel. You got to remember that every color has a certain frequency given via when a light passes through it as well as the returning intensity. These are picked up by the CCD and can then determine what the bit setting for the said pixel needs to be to represent the color. Quality usually depends on the quality of the CCD light recepters and how many bits the scanner uses. Higher the bit count, higher the color count. Algorythms in the scanners chip logic probably determines how to interpret the CCD receptros info into a visible display.
__________________

__________________
If you argue with an idiot he will drag you down to his level and beat you with experience.

I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.

-Robert Asprin
killians45 is offline  
Old 09-15-2004, 05:34 PM   #13 (permalink)
Wizard Techie
 
Join Date: Apr 2004
Posts: 3,247
Default

oh yeah, the chip instructions and the software... forgot to add that
__________________
If you argue with an idiot he will drag you down to his level and beat you with experience.

I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.

-Robert Asprin
killians45 is offline  
Old 09-16-2004, 06:11 AM   #14 (permalink)
Newb Techie
 
Join Date: Sep 2004
Posts: 7
Default

im looking for anything, so the tw things were very helpfull mates
ty
bart

(others are welcome tough)
__________________

bartjeh™ is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 08:17 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.