Question

我正在尝试将一个旧的Android项目复制到一个常规的Java桌面程序中，在该程序中，该应用程序读取Dicom文件并将其像素数组数据转换为位图。由于Android的Bitmap类在常规Java中不可用，因此我尝试将像素数组数据转换为BufferedImage并将其保存为文件。

在应用中执行以下操作：

public Bitmap createBitmap(int[] pixelData) {
    Bitmap bmp = Bitmap.createBitmap(pixelData, columns, rows, Bitmap.Config.ARGB_8888);
    Runtime.getRuntime().gc();
    return bmp;
}

这是我的代码：

public static void getImageFromArray(int[] pixels, int width, int height, String fileName) throws IOException {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    WritableRaster raster = (WritableRaster) image.getData();
    raster.setPixels(0, 0, width, height, pixels);

    File outputfile = new File("C:\\Users\\mathe\\eclipse-workspace\\DicomViewerFinal\\images\\" + fileName);
    ImageIO.write(image, "jpg", outputfile);
}

但是我得到了这个例外：

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 262144
at java.awt.image.SinglePixelPackedSampleModel.setPixels(Unknown Source)
at java.awt.image.WritableRaster.setPixels(Unknown Source)
at Main.getImageFromArray(Main.java:42)
at Main.main(Main.java:29)

我不知道应该怎么做。另外，是否有更好的方法将像素数据转换为文件？这是Dicom类和可用的信息：

public class DicomImage implements Serializable {
private File file;
private int[] pixelData;
private int[][] matrix;
//private Bitmap bitmap;
private int bitsAllocated;
private int pixelRepresentation;
private int columns;
private int rows;
private String imageType;
private int minX;
private int maxX;
private int minY;
private int maxY;
private boolean bigEndian;  }

将像素阵列转换为图像文件

0 个答案: