在此页

• 特性
• 方法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

ImageBitmap interface represents a bitmap image which can be drawn to a <canvas> without undue latency. It can be created from a variety of source objects using the createImageBitmap() factory method. ImageBitmap provides an asynchronous and resource efficient pathway to prepare textures for rendering in WebGL.

特性

ImageBitmap.height 只读

是 unsigned long representing the height, in CSS pixels, of the ImageData .

ImageBitmap.width 只读

是 unsigned long representing the width, in CSS pixels, of the ImageData .

方法

ImageBitmap.close()

Disposes of all graphical resources associated with an ImageBitmap .

规范

规范	状态	注释
HTML 实时标准 The definition of 'ImageBitmap' in that specification.	实时标准

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
ImageBitmap	Chrome 50	Edge 79	Firefox 42	IE No	Opera 37	Safari No	WebView Android 50	Chrome Android 50	Firefox Android 42	Opera Android 37	Safari iOS No	Samsung Internet Android 5.0
close	Chrome 52	Edge 79	Firefox 46	IE No	Opera 37	Safari No	WebView Android 52	Chrome Android 52	Firefox Android 46	Opera Android 37	Safari iOS No	Samsung Internet Android 6.0
height	Chrome 50	Edge 79	Firefox 42	IE No	Opera 37	Safari No	WebView Android 50	Chrome Android 50	Firefox Android 42	Opera Android 37	Safari iOS No	Samsung Internet Android 5.0
width	Chrome 50	Edge 79	Firefox 42	IE No	Opera 37	Safari No	WebView Android 50	Chrome Android 50	Firefox Android 42	Opera Android 37	Safari iOS No	Samsung Internet Android 5.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• ImageBitmapFactories.createImageBitmap()
• CanvasRenderingContext2D.drawImage()
• WebGLRenderingContext.texImage2D()
• OffScreenCanvas.transferToImageBitmap()

元数据

• 最后修改： Mar 18, 2019

相关话题

1. 画布 API
2. ImageBitmap
3. 特性

   1. height
   2. width
4. 方法

   1. close()
5. Related pages for Canvas API

   1. Canvas
   2. CanvasGradient
   3. CanvasImageSource
   4. CanvasPattern
   5. CanvasRenderingContext2D
   6. HTMLCanvasElement
   7. ImageBitmapFactories
   8. ImageBitmapRenderingContext
   9. ImageData
   10. OffscreenCanvas
   11. Path2D
   12. RenderingContext
   13. TextMetrics