May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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162
関連用語
用語に関連する話
用語の使用例
ラスタライズ
画 像 をドットで の 表 現 に 変 換
ベクター形 式 の 画 像をビットマップ 形 式に 変 換 するような 処 理 のこと。J P E G や P N G など
の画像形式はビットマップ形式と言われ、画像をドットで表現しているため、斜めの線が
含まれるような画像を拡大するとギザギザが 現れ、ジャギーと呼ばれる。ベクター形式は
点 の 座 標とそれを結 ぶ 線などで 構 成され ており、拡 大してもジャギーが 発 生しない 。
ドロップ シャドウ に 注 意
文字や図形を立体的に見せるた
めドロップシャドウを使う場合
があるが、低い解像度でラスタラ
イズするとジャギーが発生しや
すい。
3Dの場合のラスタライズ
3D グラフィックスの場合、多面
体などの3次元の座標を2次元の
平面に変換することをラスタラ
イズと言い、画像化することを意
味する。
レンダリングとの違い
WebブラウザがHTMLを基に
Webページを表示することや、
3Dのデータに光源や質感を与え
て表現することをレンダリング
と言う。
Keyword
142
▶
らすたらい ず
「ラスタライズ するときは 解 像 度 に注 意しないと粗くなっちゃうよ。」
JPEGとPNG
……P172
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.