書誌事項
- タイトル別名
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- Bit-Length Expansion for Digital Images
- カイチョウスウ シンチョウ ショリ ニ ヨル ガシツ コウジョウホウ
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抄録
Bit-length of digital images is decided by the Analog to Digital (AD) converter. The bit-length expansion technique is necessary for the high-quality display such as the liquid crystal display (LCD) and the plasma display. Moreover, bit-length expansion is also necessary for low-bit length images, which are degraded by the pseudo-contour. In this paper, we propose a bit-length expansion method from M-level to N-level (N = 3(M -1)+1). This operation means that two quantization-levels are introduced between existing levels. The bit-length expansion method results in the estimation problem of an error image between an M-level's image and an N-level's image. The error image is the pattern image which is consisted of three values. We show the estimation method of the three values pattern image and the proposed method can remove the pseudo-contour of digital images through a lot of application results.
収録刊行物
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- 電気学会論文誌C(電子・情報・システム部門誌)
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電気学会論文誌C(電子・情報・システム部門誌) 128 (3), 484-492, 2008
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390282679580929280
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- NII論文ID
- 10021131864
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- NII書誌ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL書誌ID
- 9401210
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可