我正在尝试从原始样本中获取 BufferedImage ,但是在尝试读取超出我不理解的可用数据范围时遇到了异常。我想做的是:
val datasize = image.width * image.height
val imgbytes = image.data.getIntArray(0, datasize)
val datamodel = new SinglePixelPackedSampleModel(DataBuffer.TYPE_INT, image.width, image.height, Array(image.red_mask.intValue, image.green_mask.intValue, image.blue_mask.intValue))
val buffer = datamodel.createDataBuffer
val raster = Raster.createRaster(datamodel, buffer, new Point(0,0))
datamodel.setPixels(0, 0, image.width, image.height, imgbytes, buffer)
val newimage = new BufferedImage(image.width, image.height, BufferedImage.TYPE_INT_RGB)
newimage.setData(raster)
不幸的是我得到:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 32784
at java.awt.image.SinglePixelPackedSampleModel.setPixels(SinglePixelPackedSampleModel.java:689)
at screenplayer.Main$.ximage_to_swt(Main.scala:40)
at screenplayer.Main$.main(Main.scala:31)
at screenplayer.Main.main(Main.scala)
数据是标准 RGB,填充 1 个字节(因此 1 个像素 == 4 个字节),图像大小为 1366x24 像素。
我终于得到了代码来运行下面的建议。最终代码是:
val datasize = image.width * image.height
val imgbytes = image.data.getIntArray(0, datasize)
val raster = Raster.createPackedRaster(DataBuffer.TYPE_INT, image.width, image.height, 3, 8, null)
raster.setDataElements(0, 0, image.width, image.height, imgbytes)
val newimage = new BufferedImage(image.width, image.height, BufferedImage.TYPE_INT_RGB)
newimage.setData(raster)
如果可以改进,我当然愿意接受建议,但总的来说它可以按预期工作。