Examples of javax.media.jai.LookupTableJAI

javax.media.jai.LookupTableJAI
A lookup table object associated with the "Lookup" operation. The "Lookup" operation is described in javax.media.jai.operator.LookupDescriptor.
This object represents a single- or multi-banded table of any JAI supported data type. A single- or multi-banded source image of integral data types is passed through the table and transformed into a single- or multi-banded destination image of either integral and floating point data types.
The table data may cover only a subrange of the legal range of the input data type. The subrange is selected by means of an offset parameter which is to be subtracted from the input value before indexing into the table array. When only a subranged table is used with a source image, it is up to the user to make certain that the source image does not have pixel values outside of the table range. Otherwise, an ArrayIndexOutOfBoundsException can occur.
The table data is saved by reference only. @see javax.media.jai.operator.LookupDescriptor

        Cube cube = new Cube(getSourceImage(0), maxColorNum);
        cube.constructTree();
        cube.reduction();
        cube.assignment();


        colorMap = new LookupTableJAI(cube.colormap);
        setProperty("LUT", colorMap);
        setProperty("JAI.LookupTable", colorMap);
    }

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      byte[][] data = new byte[bands][icm.getMapSize()];
      if (icm.hasAlpha()) icm.getAlphas(data[3]);
      icm.getReds(data[0]);
      icm.getGreens(data[1]);
      icm.getBlues(data[2]);
      LookupTableJAI rtable = new LookupTableJAI(data);
      return JAI.create("lookup", src, rtable).getAsBufferedImage();
    }

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/*    */   public RenderedImage create(ParameterBlock paramBlock, RenderingHints renderHints)
/*    */   {
/* 51 */     ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
/*    */ 
/* 54 */     RenderedImage source = paramBlock.getRenderedSource(0);
/* 55 */     LookupTableJAI lookupTable = (LookupTableJAI)paramBlock.getObjectParameter(0);
/*    */ 
/* 57 */     KernelJAI kernel = (KernelJAI)paramBlock.getObjectParameter(1);
/*    */ 
/* 59 */     return new ErrorDiffusionOpImage(source, renderHints, layout, lookupTable, kernel);
/*    */   }

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/*     */   }
/*     */ 
/*     */   private void createLUT(int ncubes)
/*     */   {
/* 378 */     if (this.colorMap == null) {
/* 379 */       this.colorMap = new LookupTableJAI(new byte[3][ncubes]);
/*     */     }
/*     */ 
/* 382 */     byte[] rLUT = this.colorMap.getByteData(0);
/* 383 */     byte[] gLUT = this.colorMap.getByteData(1);
/* 384 */     byte[] bLUT = this.colorMap.getByteData(2);

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/*    */   implements RenderedImageFactory
/*    */ {
/*    */   public RenderedImage create(ParameterBlock args, RenderingHints hints)
/*    */   {
/* 56 */     RenderedImage source = args.getRenderedSource(0);
/* 57 */     LookupTableJAI colorMap = (LookupTableJAI)args.getObjectParameter(0);
/*    */ 
/* 59 */     KernelJAI errorKernel = (KernelJAI)args.getObjectParameter(1);
/*    */ 
/* 62 */     if ((colorMap.getNumBands() != 1) && (colorMap.getNumBands() != 3))
/*    */     {
/* 65 */       return null;
/* 66 */     }if (colorMap.getDataType() != 0)
/*    */     {
/* 68 */       return null;
/*    */     }
/*    */ 
/* 72 */     SampleModel sourceSM = source.getSampleModel();
/* 73 */     if (sourceSM.getDataType() != 0)
/*    */     {
/* 75 */       return null;
/* 76 */     }if (sourceSM.getNumBands() != colorMap.getNumBands())
/*    */     {
/* 78 */       return null;
/*    */     }
/*    */ 
/* 82 */     ImageLayout layoutHint = RIFUtil.getImageLayoutHint(hints);

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/*  531 */       for (int i = 0; i < 256; i++) {
/*  532 */         b[i] = ((byte)i);
/*      */       }
/*      */     }
/*      */ 
/*  536 */     return new LookupTableJAI(data);
/*      */   }

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/*  941 */         pb = new ParameterBlock().addSource(ri).add(matrix);
/*  942 */         ri = JAI.createRenderable("bandcombine", pb);
/*      */       }
/*      */ 
/*  945 */       float contrast = paramBlock.getFloatParameter(4);
/*  946 */       LookupTableJAI lut = createContrastLUT(contrast, nBands);
/*      */ 
/*  948 */       pb = new ParameterBlock().addSource(ri).add(lut);
/*  949 */       ri = JAI.createRenderable("lookup", pb);
/*      */ 
/*  951 */       if (isPYCC)

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/* 258 */     createLUT();
/* 259 */     setProperty("LUT", this.colorMap);
/*     */   }
/*     */ 
/*     */   private void createLUT() {
/* 263 */     this.colorMap = new LookupTableJAI(new byte[3][this.maxColorNum]);
/* 264 */     byte[][] map = this.colorMap.getByteData();
/* 265 */     int[] index = new int[this.maxColorNum];
/* 266 */     for (int i = 0; i < this.maxColorNum; i++)
/* 267 */       index[this.network[i][3]] = i;
/* 268 */     for (int i = 0; i < this.maxColorNum; i++) {

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/*    */ 
/* 58 */     if (!MediaLibAccessor.isMediaLibCompatible(args)) {
/* 59 */       return null;
/*    */     }
/*    */ 
/* 63 */     LookupTableJAI table = (LookupTableJAI)args.getObjectParameter(0);
/* 64 */     if ((table.getNumBands() > 4) || (table.getDataType() == 1))
/*    */     {
/* 66 */       return null;
/*    */     }
/*    */ 
/* 69 */     return new MlibLookupOpImage(args.getRenderedSource(0), hints, layout, table);

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/* 126 */     Cube cube = new Cube(getSourceImage(0), this.maxColorNum);
/* 127 */     cube.constructTree();
/* 128 */     cube.reduction();
/* 129 */     cube.assignment();
/*     */ 
/* 131 */     this.colorMap = new LookupTableJAI(cube.colormap);
/* 132 */     setProperty("LUT", this.colorMap);
/*     */   }

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