我有一個planarimage,我通過我發現的一些示例代碼轉換爲黑色和白色。然後我需要將它轉換爲下一個代碼段的BufferedImage。但我得到以下例外:java嘗試將planarimage轉換爲bufferedimage,但colormodel不兼容
java.lang.IllegalArgumentException:指定的ColorModel與圖像SampleModel不兼容。 在javax.media.jai.PlanarImage.setImageLayout(PlanarImage.java:535) 在javax.media.jai.RenderedOp.createRendering(RenderedOp.java:867) 在javax.media.jai.RenderedOp.getRendering(RenderedOp。 java:888) at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:799) at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:867) at javax.media.jai.RenderedOp。了CopyData(RenderedOp.java:2284)
這裏是我發現轉換爲(太陽例如,我認爲)的代碼黑白:
ParameterBlock pb = new ParameterBlock();
pb.addSource(input);
ColorModel cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_GRAY), new int[] {8},
false,
false,
Transparency.OPAQUE,
DataBuffer.TYPE_BYTE);
pb.add(cm);
PlanarImage src = JAI.create("ColorConvert", pb);
pb = new ParameterBlock();
pb.addSource(src);
String opName = null;
opName = "errordiffusion";
LookupTableJAI lut = new LookupTableJAI(new byte[] {(byte)0x00, (byte)0xff});
pb.add(lut);
pb.add(KernelJAI.ERROR_FILTER_FLOYD_STEINBERG);
// Create a layout containing an IndexColorModel which maps
// zero to zero and unity to 255.
ImageLayout layout = new ImageLayout();
byte[] map = new byte[] {(byte)0x00, (byte)0xff};
cm = new IndexColorModel(1, 2, map, map, map);
layout.setColorModel(cm);
// Create a hint containing the layout.
RenderingHints hints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT,layout);
// Dither the image.
PlanarImage dst = JAI.create(opName, pb, hints);
下面是我試圖將其轉換爲一個BufferedImage,在爲了我曾嘗試:
//doesn't work
BufferedImage image = dst.getAsBufferedImage();
//thought of using the color model the b&w process did,also doesn't work
byte[] map = new byte[] {(byte)0x00, (byte)0xff};
ColorModel cm = new IndexColorModel(1, 2, map, map, map);
BufferedImage image = new BufferedImage(cm, dst.copyData(), false, null);
//I had the most hope for this one,but same error again
WritableRaster wr = dst.copyData();
ColorModel cm = PlanarImage.createColorModel(wr.getSampleModel());
BufferedImage image = new BufferedImage(cm, wr, false, null);
誰能告訴我什麼,我做錯了什麼?
我發現即使調用dst.getNumBands()
也會引發此錯誤。顯然我不知道我在這裏做什麼。更確切地說,調用dst.betNumbBands();
將導致:
java.lang.IllegalArgumentException:指定的ColorModel與圖像SampleModel不兼容。 在javax.media.jai.PlanarImage.setImageLayout(PlanarImage.java:535) 在javax.media.jai.RenderedOp.createRendering(RenderedOp.java:867) 在javax.media.jai.RenderedOp.getRendering(RenderedOp。 java:888) at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:799) at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:867) at javax.media.jai.RenderedOp。 getSampleModel(RenderedOp.java:2233) 在javax.media.jai.PlanarImage.getNumBands(PlanarImage.java:678)
錯誤:BandCombine:矩陣的行沒有正確數量的條目.. – 2016-07-27 10:55:39