java - 使用 Rapsberry PI Camara（Java 中）拍摄和加载图像/图片

Question

我想用 Raspberry PI Camara 拍一些照片。这工作正常。但是在将图片保存到 PI 后，我无法加载它们……这是我加载图像的代码：

    BufferedImage imgBuff = null;
    try {
        imgBuff = ImageIO.read(new File(saveFile + picName));
    } catch (IOException e) {
        e.printStackTrace();
    }
    PlanarImage imgPI = PlanarImage.wrapRenderedImage(imgBuff);

这里有一个例外：javax.imageio.IIOException: Can't read input file！但是图像存在......这是我如何拍照的代码：

    try {
        StringBuilder sb = new StringBuilder(raspistillPath);
        sb.append(" -n -bm");
        sb.append(" -t " + picTimeout);
        sb.append(" -w " + picWidth);
        sb.append(" -h " + picHeight);
        sb.append(" -q " + picQuality);
        sb.append(" -e " + picType);
        sb.append(" -o " + saveFile + picName);

        Runtime.getRuntime().exec(sb.toString());
        Thread.sleep(picTimeout);

    } catch (Exception e) {
        System.exit(e.hashCode());          

    }