Earticle

초록

영어

Joint photographic experts group (JPEG) is a standard still-image compression technique, established by the international organization for standardization (ISO) and international telecommunication standardization sector (ITUT). The standard is intended to be utilized in the various kinds of color still imaging systems as a standard color image coding format. Because JPEG is a lossy compression, the decompressed image pixel values are not the same as the value before compression. Various distortions of JPEG compression and JPEG recompression has been reported in various papers. The Image compressed by JPEG is often recompressed by same type compression method in JPEG. In general, JPEG is a lossy compression and the quality of compressed image is predicted that is varied in according to recompression Q-factor. In this paper, four difference color samples(photo image, gradient image, gradient image, vector drawing image, text image) were compressed in according to various Q-factor, and then the compressed images were recompressed according to various Q-factor once again. As the result, this paper evaluate the variation of image quality and file size in JPEG recompression and recommed the optimum recompression factor.

목차

Abstract
 1. 서론
 2. 실험
  2-1. 샘플 이미지
  2-2. 실험 방법
 3. 결과 및 고찰
  3-1. 샘플별 JPEG 압축과 재압축 이미지의 평가
  3-2. JPEG 압축과 재압축 이미지의 용량 비교
 4. 결론
 참고문헌

저자

• 이성형 [ Sung-Hyung Lee | 부경대학교 공과대학 인쇄정보공학과 ]
• 조가람 [ Ga-Ram Cho | 부경대학교 공과대학 인쇄정보공학과 ) ]
• 구철회 [ Koo Chul-Whoi | 부경대학교 인쇄정보공학과 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국인쇄학회지 [JOURNAL OF THE KOREAN GRAPHIC ARTS COMMUNICATION SOCIETY]

• 간기

  연간

• pISSN

  1226-1149

• 수록기간

  1983~2025

• 십진분류

  KDC 586 DDC 686