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Sane

SANE stands for "Scanner Access Now Easy" and is an application programming interface (API) that provides standardized access to any raster image scanner hardware (flatbed scanner, hand-held scanner, video- and still-cameras, frame-grabbers, etc.)

How to use scanner in the CentOS6 

## sane 관련 패키지 검색 및 설치
yum search all sane
sudo yum -y install sane xsane xsane-common xsane-gimp

## USB 목록을 출력한다:
sudo lsusb

## 스캔 가능한 장치목록 출력: 
scanimage -L

## X-Window 기반 스캐너 툴 실행:
xsane

Command-line scan

아래와 같은 방법으로 명령행에서 스캔을 할 수 있다. 

$ scanimage -d "smfp:usb;04e8;3469;071KB8KFBA00T6H" --format tiff > /home/share/scan.tiff

참고로, Node.js를 사용한 예제는 아래와 같다. (스캐너 관련 권한을 할당해야 웹으로 사용 가능하다) 

var express = require('express');
var router = express.Router();

var exec = require('child_process').exec;
var cmd = 'scanimage -d "smfp:usb;04e8;3469;071KB8KFBA00T6H" --format tiff > /home/share/scan.tiff';

/* GET home page. */
router.get('/', function(req, res, next) {
  res.render('index', { title: 'My-SCANNER' });
});

router.post('/scan', function(req, res, next) {
    exec(cmd, function(error, stdout, stderr) {
      // command output is in stdout
      console.log('scan!');
    });
  res.send('Send the scan query...<br />Please check the shared directory.');
});

module.exports = router;

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