从图像创建位图

发布于 2024-12-17 18:13:45 字数 737 浏览 1 评论 0原文

我有一个 Image 对象，它是相机拍摄的 jpg 图片，我需要从中创建一个 Bitmap。

除了使用 BMPGenerator 类？我正在开发一个商业项目，但由于 GPLv3 许可证，我认为我无法使用它。

到目前为止，这是我的代码。我可以用它做点什么吗？

    FileConnection file = (FileConnection) Connector.open("file://" + imagePath, Connector.READ_WRITE);
    InputStream is = file.openInputStream();
    Image capturedImage = Image.createImage(is);

我尝试了这个，但无法获得正确的文件路径并且图像卡在空值中

    EncodedImage image = EncodedImage.getEncodedImageResource(filePath);
    byte[] array = image.getData();
    capturedBitmap = image.getBitmap();

原文

I have an Image object which is a jpg picture taken by the camera and I need to create a Bitmap from it.

Is there any way to do it besides using BMPGenerator class? I'm working on a commercial project and I don't think I can use it due to the GPLv3 license.

So far this is the code I have. Can I do something with it?

    FileConnection file = (FileConnection) Connector.open("file://" + imagePath, Connector.READ_WRITE);
    InputStream is = file.openInputStream();
    Image capturedImage = Image.createImage(is);

I tried this but I wasn't able to get the correct filepaht and the image is stuck in null

    EncodedImage image = EncodedImage.getEncodedImageResource(filePath);
    byte[] array = image.getData();
    capturedBitmap = image.getBitmap();

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铜锣湾横着走 2024-12-24 18:13:45

您可以使用videoControl.getSnapshot(null)，然后使用Bitmap myBitmap = Bitmap.createBitmapFromBytes(raw, 0, raw.length, 1)从相机获取位图。

videoControl是从player.getControl("VideoControl")获取的，player是从Manager.createPlayer()获取

的图片你有吗？如果我们谈论 EncodedImage，您只需使用其中的 getBitmap() 即可。

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半夏半凉 2024-12-24 18:13:45

固定的！
嗯，差不多了。
使用以下方法，但图像旋转了 90 度。
将使用这个

public Bitmap loadIconFromSDcard(String imgname){

    FileConnection fcon = null;
    Bitmap icon = null;

    try {

        fcon = (FileConnection)Connector.open(imgname, Connector.READ);
        if(fcon.exists()) {
            byte[] content = new byte[(int) fcon.fileSize()];
              int readOffset = 0;
              int readBytes = 0;
              int bytesToRead = content.length - readOffset;
              InputStream is = fcon.openInputStream();
              while (bytesToRead > 0) {
                readBytes = is.read(content, readOffset, bytesToRead);
                if (readBytes < 0) {
                  break;
                }
                readOffset += readBytes;
                bytesToRead -= readBytes;
              }
              is.close();
            EncodedImage image = EncodedImage.createEncodedImage(content,0,content.length);
            icon = image.getBitmap();

        }

    } catch (Exception e) {

    }finally{
        // Close the connections
        try{ if(fcon != null) fcon.close(); }
        catch(Exception e){}
    }

    return icon;
}

Fixed!
Well, almost.
Used the following method but the image is rotated 90 degrees.
Going to fix that with this

public Bitmap loadIconFromSDcard(String imgname){

    FileConnection fcon = null;
    Bitmap icon = null;

    try {

        fcon = (FileConnection)Connector.open(imgname, Connector.READ);
        if(fcon.exists()) {
            byte[] content = new byte[(int) fcon.fileSize()];
              int readOffset = 0;
              int readBytes = 0;
              int bytesToRead = content.length - readOffset;
              InputStream is = fcon.openInputStream();
              while (bytesToRead > 0) {
                readBytes = is.read(content, readOffset, bytesToRead);
                if (readBytes < 0) {
                  break;
                }
                readOffset += readBytes;
                bytesToRead -= readBytes;
              }
              is.close();
            EncodedImage image = EncodedImage.createEncodedImage(content,0,content.length);
            icon = image.getBitmap();

        }

    } catch (Exception e) {

    }finally{
        // Close the connections
        try{ if(fcon != null) fcon.close(); }
        catch(Exception e){}
    }

    return icon;
}

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