File	Doc	Category	Size	Date	Package
JPEGQTable.java	API Doc	Android 1.5 API	5389	Wed May 06 22:41:54 BST 2009	javax.imageio.plugins.jpeg

JPEGQTable

• java.lang.Object

Fields Summary
private static final int	SIZE The Constant SIZE.
private static final int	BASELINE_MAX The Constant BASELINE_MAX.
private static final int	MAX The Constant MAX.
private int[]	theTable The table.
private static final int[]	K1LumTable The Constant K1LumTable.
private static final int[]	K2ChrTable The Constant K2ChrTable.
public static final JPEGQTable	K1Luminance The K1Luminance indicates standard table K.1 from JPEG specification and produces "good" quality output.
public static final JPEGQTable	K1Div2Luminance The K1Div2Luminance indicates K.1 table from JPEG specification with all elements divided by 2 and produces "very good" quality output.
public static final JPEGQTable	K2Chrominance The K2Chrominance indicates K.2 table from JPEG specification and produces "good" quality output.
public static final JPEGQTable	K2Div2Chrominance The Constant K2Div2Chrominance indicates K.2 table from JPEG specification with all elements divided by 2 and produces "very good" quality output.

Constructors Summary
public JPEGQTable(int[] table) Instantiates a new JPEGQTable from the array, which should contain 64 elements in natural order. param table the quantization table. if (table == null) { throw new IllegalArgumentException("table should not be NULL"); } if (table.length != SIZE) { throw new IllegalArgumentException("illegal table size: " + table.length); } theTable = table.clone();

Methods Summary
public javax.imageio.plugins.jpeg.JPEGQTable	getScaledInstance(float scaleFactor, boolean forceBaseline) Gets the scaled instance as quantization table where the values are multiplied by the scaleFactor and then clamped if forceBaseline is true. param scaleFactor the scale factor of table. param forceBaseline the force baseline flag, the values should be clamped if true. return the new quantization table. int table[] = new int[SIZE]; int maxValue = forceBaseline ? BASELINE_MAX : MAX; for (int i = 0; i < theTable.length; i++) { int rounded = Math.round(theTable[i] * scaleFactor); if (rounded < 1) { rounded = 1; } if (rounded > maxValue) { rounded = maxValue; } table[i] = rounded; } return new JPEGQTable(table);
public int[]	getTable() Gets the current quantization table as an array of integer values. return the current quantization table as an array of integer values. return theTable.clone();
public java.lang.String	toString() Returns the string representation of this JPEGQTable object. return the string representation of this JPEGQTable object. // -- TODO more informative info return "JPEGQTable";