Examples of LookupTableJAI

com.lightcrafts.mediax.jai.LookupTableJAI

A lookup table object associated with the "Lookup" operation. The "Lookup" operation is described in com.lightcrafts.mediax.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 com.lightcrafts.mediax.jai.operator.LookupDescriptor

javax.media.jai.LookupTableJAI

A lookup table object associated with the "Lookup" operation. The "Lookup" operation is described in javax.media.jai.operator.LookupDescriptor.

The table data is saved by reference only. @see javax.media.jai.operator.LookupDescriptor

            final int newSize = Math.max(mapSize, suggestedTransparent);
            final int newPixelSize = ColorUtilities.getBitCount(newSize);
            if (newPixelSize > 16)
                throw new IllegalArgumentException(
                        "Unable to create index color model with more than 65536 elements");
            final LookupTableJAI lookupTable;
            if (newPixelSize <= 8) {
                final byte[] table = new byte[mapSize];
                for (int i = 0; i < mapSize; i++) {
                    table[i] = (byte) ((oldCM.getAlpha(i) == 0) ? suggestedTransparent : i);
                }
                lookupTable = new LookupTableJAI(table);
            } else {
                final short[] table = new short[mapSize];
                for (int i = 0; i < mapSize; i++) {
                    table[i] = (short) ((oldCM.getAlpha(i) == 0) ? suggestedTransparent : i);
                }
                lookupTable = new LookupTableJAI(table, true);
            }
            /*
             * Now we need to perform the look up transformation. First of all we create the new color model with a bitmask transparency using the
             * transparency index specified to this method. Then we perform the lookup operation in order to prepare for the gif image.
             */

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Examples of LookupTableJAI

Examples of javax.media.jai.LookupTableJAI