创造出巨大的BufferedImage [英] creating huge BufferedImage

问题描述

我无法创造了巨大的BufferedImage（内存不足是没有问题的）。没有人有任何想法？

1。新的BufferedImage（10000，1000000 BufferedImage.TYPE_3BYTE_BGR）;

 异常线程mainjava.lang.NegativeArraySizeException
    在java.awt.image.DataBufferByte中的＆LT;＆初始化GT;（DataBufferByte.java:42）
    在java.awt.image.Raster.createInterleavedRaster（Raster.java:253）
    在java.awt.image.BufferedImage中的＆LT;＆初始化GT;（BufferedImage.java:368）
 

2。新的BufferedImage（10000，1000000 BufferedImage.TYPE_INT_RGB）;

 异常螺纹主java.lang.IllegalArgumentException异常：尺寸（宽= 10000 HEIGHT = 1000000）过大
在java.awt.image.SampleModel中的＆LT;＆初始化GT;（SampleModel.java:112）
    在java.awt.image.SinglePixelPackedSampleModel中的＆LT;＆初始化GT;（SinglePixelPackedSampleModel.java:124）
    在java.awt.image.Raster.createPackedRaster（Raster.java:770）
    在java.awt.image.Raster.createPackedRaster（Raster.java:466）
    在java.awt.image.DirectColorModel.createCompatibleWritableRaster（DirectColorModel.java:1015）
    在java.awt.image.BufferedImage中的＆LT;＆初始化GT;（BufferedImage.java:315）
 

解决方案

我相信这是栅格类的限制。 宽*高必须小于 Integer.MAX_VALUE的

<一个href=\"http://docs.oracle.com/javase/7/docs/api/java/awt/image/Raster.html\">http://docs.oracle.com/javase/7/docs/api/java/awt/image/Raster.html

由于周围的工作我可能会分裂我的BufferedImage到哪里宽度和高度都小于 Integer.MAX_VALUE的，所以46,340x46,340平方根节最大。

更新：它看起来像 PNGJ 是在图书馆的http：// code.google.com/p/pngj/~~V~~aux 为这个目的而创建。

I'm unable to create a huge BufferedImage (lack of memory is not the problem). Does anyone have any ideas?

1. new BufferedImage(10000, 1000000, BufferedImage.TYPE_3BYTE_BGR);

Exception in thread "main" java.lang.NegativeArraySizeException
    at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:42)
    at java.awt.image.Raster.createInterleavedRaster(Raster.java:253)
    at java.awt.image.BufferedImage.<init>(BufferedImage.java:368)

2. new BufferedImage(10000, 1000000, BufferedImage.TYPE_INT_RGB);

Exception in thread "main" java.lang.IllegalArgumentException: Dimensions (width=10000 height=1000000) are too large    
at java.awt.image.SampleModel.<init>(SampleModel.java:112)
    at java.awt.image.SinglePixelPackedSampleModel.<init>(SinglePixelPackedSampleModel.java:124)
    at java.awt.image.Raster.createPackedRaster(Raster.java:770)
    at java.awt.image.Raster.createPackedRaster(Raster.java:466)
    at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
    at java.awt.image.BufferedImage.<init>(BufferedImage.java:315)

解决方案

I believe this is a limitation of the Raster class. Width * Height needs to be less than Integer.MAX_VALUE

http://docs.oracle.com/javase/7/docs/api/java/awt/image/Raster.html

As a work around I'd probably split my BufferedImage into sections where width and height are both less than the square root of Integer.MAX_VALUE, so 46,340x46,340 max.

UPDATE: It looks like the PNGJ Library at http://code.google.com/p/pngj/ was created for this purpose.

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