创建 TIFF 图像时 Java 堆空间错误

Question

由于我不熟悉使用 JAI 处理 TIFF，因此我尝试使用 float 据创建 6000*6000 的 RGB TIFF 图像。实际上，该代码适用于 5000*5000 图像，但当我增加大小时，我在 tiledImage.setData(pattern);

行收到 Java 堆空间错误

请告诉我使用平铺概念创建 RGB/多波段 RIFF 图像是否正确。或者有什么方法可以创建吗？

错误:

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
        at java.awt.image.DataBufferFloat.<init>(DataBufferFloat.java:53)
        at java.awt.image.ComponentSampleModel.createDataBuffer(ComponentSampleModel.java:409)
        at javax.media.jai.RecyclingTileFactory.createTile(RecyclingTileFactory.java:397)
        at javax.media.jai.PlanarImage.createWritableRaster(PlanarImage.java:1995)
        at javax.media.jai.TiledImage.createTile(TiledImage.java:998)
        at javax.media.jai.TiledImage.getWritableTile(TiledImage.java:1118)
        at javax.media.jai.TiledImage.setData(TiledImage.java:1241)
        at javaapplication17.Test3.main(Test3.java:69)
Java Result: 1

代码:

public class Test3 {

    public static void main(String a[]) {
        int imageHeight = 6000;
        int imageWidth = 6000;
        WritableRaster raster;
        int[] bandOffsets = new int[3];
        bandOffsets[0] = 2;
        bandOffsets[1] = 1;
        bandOffsets[2] = 0;
        PixelInterleavedSampleModel sm = new PixelInterleavedSampleModel(DataBuffer.TYPE_FLOAT, imageWidth, imageHeight, 3, 3 * 6000, bandOffsets);
// Origin is 0,0.
        WritableRaster pattern = Raster.createWritableRaster(sm, new Point(0, 0));
        float[] bandValues = new float[3];
        bandValues[0] = 90;
        bandValues[1] = 45;
        bandValues[2] = 45;
       // Set values for the pattern raster.
        for (int y = 0; y < pattern.getHeight(); y++) {
            for (int x = 0; x < pattern.getWidth(); x++) {
                pattern.setPixel(x, y, bandValues);
                bandValues[1] = (bandValues[1] + 1) % 255;
                bandValues[2] = (bandValues[2] + 1) % 255;
            }
        }
        ColorModel colorModel = PlanarImage.createColorModel(sm);

        // Create a TiledImage using the SampleModel.
        TiledImage tiledImage = new TiledImage(0, 0, imageWidth, imageHeight, 0, 0, sm, colorModel);
        // Set the data of the tiled image to be the raster.
        tiledImage.setData(pattern);
        // Save the image on a file.
           JAI.create("filestore", tiledImage, "rgbpattern_test4.tif", "TIFF");
    }
}

Answer 1

简单的解决方案是使用 -Xmx 选项增加堆大小。