将 java.awt.Image 保存到磁盘
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Save java.awt.Image to disk
提问by nxhoaf
I have a 3rd-party lib that produces java.awt.Image object from a video stream. (In fact, it's originally used to decode .h264 file and then, display images decoded in a JFrame).
我有一个从视频流生成 java.awt.Image 对象的第 3 方库。（实际上，它最初用于解码 .h264 文件，然后显示在 JFrame 中解码的图像）。
Now, I want use that lib to capture several images of the stream and save them to hard disk. So, What must I do to save these java.awt.Image to file ?
现在，我想使用该库来捕获流的多个图像并将它们保存到硬盘。那么，我必须怎么做才能将这些 java.awt.Image 保存到文件中？
回答by Felix
See ImageIO
The type can be "jpg", "png" (Java <1.6) or "gif" (Java 1.6+).
类型可以是“jpg”、“png”（Java <1.6）或“gif”（Java 1.6+）。
To save a ToolKitImage you can do the following.
要保存 ToolKitImage，您可以执行以下操作。
BufferedImage bufferedImage= new BufferedImage(toolkitImage.getWidth(), toolkitImage.getHeight(), BufferedImage.TYPE_INT_RGB);
image.getGraphics().drawImage(toolkitImage, 0, 0, null);
ImageIO.write(bufferedImage, "jpg", new File("C:\myImage.jpg"));
回答by THarms
Please ckech out this tutorial: Writing/Saving an Image
请查看本教程：编写/保存图像
This is a basic task, the ImageIO lib will help you pretty easy with this.
这是一项基本任务，ImageIO 库将帮助您轻松完成此任务。
回答by pkpk1234
public void savePic(Image image, String type, String dst){
int width = image.getWidth(this);
int height = image.getHeight(this);
BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
Graphics g = bi.getGraphics();
try {
g.drawImage(image, 0, 0, null);
ImageIO.write(bi, type, new File(dst));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
回答by lynks
Something like;
就像是;
Image img = /* your image */
BufferedImage bi = (BufferedImage)img;
File f = new File("./output.png");
ImageIO.write(bi, "png", f);
