HD Photo Specification のダウンロード

Version 1.0

最終更新日: 2006年11月16日

HD Photo
HD Photo (Windows Media Photo とも呼ばれます) は、既存のイメージ形式の制限を超える、連続階調の静止画像用の新しいファイル形式です。HD Photo は、下記のように、広範な機能をサポートします。

表示または印刷用の、複数のカラー形式

固定または浮動小数点での、高ダイナミック レンジ、広色域のイメージ エンコード

無損失圧縮または高品質の損失圧縮

複数の解像度とサブ領域に対する、きわめて効率的なデコード

デコード中の形式の変換における、最小限のオーバーヘッド

HD Photo は、メモリのフットプリントが小さく、ライトウェイトで高パフォーマンスのアルゴリズムを提供し、デバイス内での実用的なエンコードとデコードを可能にします。HD Photo は、JPEG-2000 に匹敵する、JPEG の 2 倍を超えるイメージ品質を実現します。

Windows Media Photo は、HD Photo という名前に変更されました。いずれの名前も同じファイル形式を示します。Microsoft Windows 製品には、HD Photo の実装を Windows Media Photo としているものもまだあります。

このダウンロード パッケージは、この仕様のリリース済みバージョンである Version 1.0 を含んでおり、現在 Windows Vista、Windows Image Component (WIC)、および .NET Framework 3.0 に付属して出荷されている HD Photo (Windows Media Photo) のバージョンと完全に互換性があります。

HD Photo および関連テクノロジの詳細については、Microsoft の hdphoto@microsoft.com (英語) までお問い合わせください。

HD Photo Feature Specification 1.0
HD Photo Feature Specification は、ファイル コンテナ形式に関する詳細情報を提供し、全体の構造、広範にわたってサポートされたイメージ ピクセル形式、およびメタデータに関する情報を含みます。この仕様は、以前のバージョンの Microsoft Windows の Windows Image Components (WIC) および .NET Framework 3.0 など、Windows Vista で使用可能なアプリケーション プログラム インターフェイス (API) に関する情報も含んでいます。HD Photo Feature Specification と対応する Windows 開発ドキュメントでは、Windows アプリケーション、サービス、およびデバイス ドライバでの HD Photo サポートの実装に必要な情報を開発者に提供します。

HD Photo Specification には、圧縮ビット ストリーム形式については記載されていません。それに関する情報は、Device Porting Kit (DPK) で提供されています。DPK には、HD Photo Feature Specification が含まれています。両方を必要とされる場合は、DPK をダウンロードしてください。

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次へ進む前に、下記の使用許諾契約書をお読みください。

    HD Photo Specification

Microsoft Corporation Technical Documentation License Agreement for the specification "HD Photo"

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