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JP2002209223A Expired / Lapsed JP ⏱️ 0.0 years remaining

Image processing apparatus and method, and recording medium

Assignee: Sony Corp
•
Filing: 2001-01-09
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Granted: —
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Expires: 2021-01-09
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 復元画像における色モアレの発生を抑止す る。 【解決手段】 階調変換部71は、色モザイク画像Mに 対し、階調変調処理を施して変調色モザイク画像Mgを 生成する。色差画像生成部72,3は、変調色モザイク 画像Mgを用い、それぞれ色差画像C,Dを生成する。 輝度画像生成部74は、変調モザイク画像Mg、および 色差信号C,Dを用いて輝度画像Lを生成する。色空間 変換部75は、色差画像C,D、および輝度画像Lに色 空間変換処理を施して変調画像を生成する。 階調逆変 換部76乃至78は、変調画像に変調逆変換処理を施し て、それぞれ出力画像R,G,Bを生成する。 (57) [Summary] [Problem] To suppress the occurrence of color moiré in a restored image. SOLUTION: A gradation conversion section 71 performs gradation modulation processing on a color mosaic image M to generate a modulated color mosaic image Mg. The color difference image generation units 72 and 3 generate color difference images C and D, respectively, using the modulated color mosaic image Mg. The luminance image generation unit 74 generates a luminance image L using the modulated mosaic image Mg and the color difference signals C and D. The color space conversion unit 75 performs a color space conversion process on the color difference images C and D and the luminance image L to generate a modulated image. The grayscale inverse conversion units 76 to 78 perform modulation inverse conversion processing on the modulated image to generate output images R, G, and B, respectively.

Inventors

  • 👤 Tomoo Mitsunaga
  • 👤 知生 光永
  • 👤 Seiji Kobayashi
  • 👤 誠司 小林
  • 👤 Hiroaki Ono
  • 👤 博明 小野

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 17:09
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; G06T3/4015; H; H04; H04N; H04N23/00; H04N23/80; H04N23/84; H04N23/843; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/134; H04N25/135; H04N25/136; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F39/151; H10F39/1515; H10F39/80; H10F39/805; H10F39/8053; H04N2209/00; H04N2209/04; H04N2209/041; H04N2209/042; H04N2209/045; H04N2209/046; H10F39/806; H10F39/8063

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