その転職、Qiita Jobsでしませんか？詳しくはこちら
Miracle-T-Shirt09@Miracle-T-Shirt09
Improve article
Send edit request
Article information
RevisionsEdit RequestsShow all likersShow article in Markdown
Report article
Help us understand the problem. What is going on with this article?

ImageDataメモ

JavaScriptcanvas
More than 1 year has passed since last update.

概要

ImageDataインターフェースのメモ

ImageDataインターフェース

CanvasRenderingContext2D.getImageData()で取得したデータの形式

プロパティ

height

高さのピクセル数
型はunsigned longとのことだが、JavaScriptではnumber

width

幅のピクセル数
型はunsigned longとのことだが、JavaScriptではnumber

data

画像データの一次元配列。
RGBAの順番でデータ（Uint8ClampedArray）が格納されている。

  • R: Red
  • G: Green
  • B: Blue
  • A: Alpha ※ 透過度 (数が小さいほど透過度が高い)

イメージ画像（3x3の画像の場合）
9B2D2536-1C5D-489E-90E1-8498F630EBB1.jpg

参考

ImageData

Edit request
0
Miracle-T-Shirt09
Masahiko Jinno@Miracle-T-Shirt09
ベンチプレス:80kg、デッドリフト:130kg、スクワット:190kg。MDD(Muscle-Driven Development)エバンジェリスト。 https://twitter.com/MiracleTShirt09
Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
Comments
No comments
Sign up for free and join this conversation.
If you already have a Qiita account
Why do not you register as a user and use Qiita more conveniently?
You need to log in to use this function. Qiita can be used more conveniently after logging in.
You seem to be reading articles frequently this month. Qiita can be used more conveniently after logging in.
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
ユーザーは見つかりませんでした