src/pixy/image/jpeg/JPGConsts.java - pixymeta_android - Git at Google

 /*
  * Copyright (c) 2014-2021 by Wen Yu
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
  * http://www.eclipse.org/legal/epl-2.0.
  *
  * This Source Code may also be made available under the following Secondary
  * Licenses when the conditions for such availability set forth in the Eclipse
  * Public License, v. 2.0 are satisfied: GNU General Public License, version 2
  * or any later version.
  *
  * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
  */

 package pixy.image.jpeg;

 /**
  * @author Wen Yu, yuwen_66@yahoo.com
  * @version 1.0 03/16/2012
  */
 public class JPGConsts {
 	// Constants related to metadata
 	public static final String XMP_ID = "http://ns.adobe.com/xap/1.0/\0";
 	// This is a non_standard XMP identifier which sometimes found in images from GettyImages
 	public static final String NON_STANDARD_XMP_ID = "XMP\0://ns.adobe.com/xap/1.0/\0";
 	public static final String XMP_EXT_ID = "http://ns.adobe.com/xmp/extension/\0";
 	// Photoshop IRB identification with trailing byte [0x00].
 	public static final String PHOTOSHOP_IRB_ID = "Photoshop 3.0\0";
 	// EXIF identifier with trailing bytes [0x00, 0x00].
 	public static final String EXIF_ID = "Exif\0\0";
 	// ICC_PROFILE identifier with trailing byte [0x00].
 	public static final String ICC_PROFILE_ID = "ICC_PROFILE\0";
 	public static final String JFIF_ID = "JFIF\0"; // JFIF
 	public static final String JFXX_ID = "JFXX\0"; // JFXX
 	public static final String DUCKY_ID = "Ducky"; // no trailing NULL
 	public static final String PICTURE_INFO_ID = "[picture info]"; // no trailing NULL
 	public static final String ADOBE_ID = "Adobe"; // no trailing NULL

 	public static final int SUBSAMPLING_NONE = 0; // aka 1x1 (4:4:4)
 	public static final int SUBSAMPLING_422  = 1; // aka 2x1
 	public static final int SUBSAMPLING_420  = 2; // aka 2x2

    /**
     * This is the order in which the after-DCT 8x8 block is traversed
     * used for reordering the QT(quantization Table) and the
     * zigzag traversed blocks
 	*/
    private static final int[] ZIGZAG_TRAVERSE_ORDER = {
 	   0,  1,  8, 16,  9,  2,  3, 10,
       17, 24, 32, 25, 18, 11,  4,  5,
       12, 19, 26, 33, 40, 48, 41, 34,
       27, 20, 13,  6,  7, 14, 21, 28,
       35, 42, 49, 56, 57, 50, 43, 36,
       29, 22, 15, 23, 30, 37, 44, 51,
       58, 59, 52, 45, 38, 31, 39, 46,
       53, 60, 61, 54, 47, 55, 62, 63
    };

    // Reverses ZigZag reordering of the quantization Table
    private static final int[] DE_ZIGZAG_TRAVERSE_ORDER = {
        0,  1,  5,  6, 14, 15, 27, 28,
        2,  4,  7, 13, 16, 26, 29, 42,
        3,  8, 12, 17, 25, 30, 41, 43,
        9, 11, 18, 24, 31, 40, 44, 53,
       10, 19, 23, 32, 39, 45, 52, 54,
       20, 22, 33, 38, 46, 51, 55, 60,
       21, 34, 37, 47, 50, 56, 59, 61,
       35, 36, 48, 49, 57, 58, 62, 63
    };

    /**
     *  This is the default quantization table for luminance
     *  ISO/IEC 10918-1 : 1993(E), Annex, Table K.1
     */
    private static final int[] QUANT_LUMINANCE = {
       16, 11, 10, 16, 24, 40, 51, 61,
       12, 12, 14, 19, 26, 58, 60, 55,
       14, 13, 16, 24, 40, 57, 69, 56,
       14, 17, 22, 29, 51, 87, 80, 62,
       18, 22, 37, 56, 68, 109, 103, 77,
       24, 35, 55, 64, 81, 104, 113, 92,
       49, 64, 78, 87, 103, 121, 120, 101,
       72, 92, 95, 98, 112, 100, 103, 99
    };

    /**
     *  This is the default quantization table for chrominance
     *  ISO/IEC 10918-1 : 1993(E), Annex, KTable K.2
     */
    private static final int[] QUANT_CHROMINANCE = {
       17, 18, 24, 47, 99, 99, 99, 99,
       18, 21, 26, 66, 99, 99, 99, 99,
       24, 26, 56, 99, 99, 99, 99, 99,
       47, 66, 99, 99, 99, 99, 99, 99,
       99, 99, 99, 99, 99, 99, 99, 99,
       99, 99, 99, 99, 99, 99, 99, 99,
       99, 99, 99, 99, 99, 99, 99, 99,
       99, 99, 99, 99, 99, 99, 99, 99
    };

    private static final byte[] DC_LUMINANCE_BITS = {0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0};

    private static final byte[] DC_LUMINANCE_VALUES = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b};

    private static final byte[] DC_CHROMINANCE_BITS = {0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0};

    private static final byte[] DC_CHROMINANCE_VALUES = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b};

    private static final byte[] AC_LUMINANCE_BITS = {0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 125};

    private static final byte[] AC_LUMINANCE_VALUES = {0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21,
 	   0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, (byte)0x81, (byte)0x91, (byte)0xA1,
 	   0x08, 0x23, 0x42, (byte)0xB1, (byte)0xC1, 0x15, 0x52, (byte)0xD1, (byte)0xF0, 0x24, 0x33, 0x62, 0x72,
 	   (byte)0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35,
 	   0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56,
 	   0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77,
 	   0x78, 0x79, 0x7A, (byte)0x83, (byte)0x84, (byte)0x85, (byte)0x86, (byte)0x87, (byte)0x88, (byte)0x89,
 	   (byte)0x8A, (byte)0x92, (byte)0x93, (byte)0x94, (byte)0x95, (byte)0x96, (byte)0x97, (byte)0x98,
 	   (byte)0x99, (byte)0x9A, (byte)0xA2, (byte)0xA3, (byte)0xA4, (byte)0xA5, (byte)0xA6, (byte)0xA7,
 	   (byte)0xA8, (byte)0xA9, (byte)0xAA, (byte)0xB2, (byte)0xB3, (byte)0xB4, (byte)0xB5, (byte)0xB6,
 	   (byte)0xB7, (byte)0xB8, (byte)0xB9, (byte)0xBA, (byte)0xC2, (byte)0xC3, (byte)0xC4, (byte)0xC5,
 	   (byte)0xC6, (byte)0xC7, (byte)0xC8, (byte)0xC9, (byte)0xCA, (byte)0xD2, (byte)0xD3, (byte)0xD4,
 	   (byte)0xD5, (byte)0xD6, (byte)0xD7, (byte)0xD8, (byte)0xD9, (byte)0xDA, (byte)0xE1, (byte)0xE2,
 	   (byte)0xE3, (byte)0xE4, (byte)0xE5, (byte)0xE6, (byte)0xE7, (byte)0xE8, (byte)0xE9, (byte)0xEA,
 	   (byte)0xF1, (byte)0xF2, (byte)0xF3, (byte)0xF4, (byte)0xF5, (byte)0xF6, (byte)0xF7, (byte)0xF8,
 	   (byte)0xF9, (byte)0xFA
    };

    private static final byte[] AC_CHROMINANCE_BITS = {0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 119};

    private static final byte[] AC_CHROMINANCE_VALUES = {0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
 	   0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, (byte)0x32, (byte)0x81, (byte)0x08,
 	   0x14, 0x42, (byte)0x91, (byte)0xA1, (byte)0xB1, (byte)0xC1, 0x09, 0x23, 0x33, 0x52, (byte)0xF0,
 	   0x15, 0x62, 0x72, (byte)0xD1, 0x0A, 0x16, 0x24, 0x34, (byte)0xE1, 0x25, (byte)0xF1,
 	   0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43,
 	   0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63,
 	   0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A,
 	   (byte)0x82, (byte)0x83, (byte)0x84, (byte)0x85, (byte)0x86, (byte)0x87, (byte)0x88, (byte)0x89,
 	   (byte)0x8A, (byte)0x92, (byte)0x93, (byte)0x94, (byte)0x95, (byte)0x96, (byte)0x97, (byte)0x98,
 	   (byte)0x99, (byte)0x9A, (byte)0xA2, (byte)0xA3, (byte)0xA4, (byte)0xA5, (byte)0xA6, (byte)0xA7,
 	   (byte)0xA8, (byte)0xA9, (byte)0xAA, (byte)0xB2, (byte)0xB3, (byte)0xB4, (byte)0xB5, (byte)0xB6,
 	   (byte)0xB7, (byte)0xB8, (byte)0xB9, (byte)0xBA, (byte)0xC2, (byte)0xC3, (byte)0xC4, (byte)0xC5,
 	   (byte)0xC6, (byte)0xC7, (byte)0xC8, (byte)0xC9, (byte)0xCA, (byte)0xD2, (byte)0xD3, (byte)0xD4,
 	   (byte)0xD5, (byte)0xD6, (byte)0xD7, (byte)0xD8, (byte)0xD9, (byte)0xDA, (byte)0xE2, (byte)0xE3,
 	   (byte)0xE4, (byte)0xE5, (byte)0xE6, (byte)0xE7, (byte)0xE8, (byte)0xE9, (byte)0xEA, (byte)0xF2,
 	   (byte)0xF3, (byte)0xF4, (byte)0xF5, (byte)0xF6, (byte)0xF7, (byte)0xF8, (byte)0xF9, (byte)0xFA
    };

    public static final byte[] getACChrominanceBits() {
 	   return AC_CHROMINANCE_BITS.clone();
    }

    public static final byte[] getACChrominanceValues() {
 	   return AC_CHROMINANCE_VALUES.clone();
    }

    public static final byte[] getACLuminanceBits() {
 	   return AC_LUMINANCE_BITS.clone();
    }

    public static final byte[] getACLuminanceValues() {
 	   return AC_LUMINANCE_VALUES.clone();
    }

    public static final byte[] getDCChrominanceBits() {
 	   return DC_CHROMINANCE_BITS.clone();
    }

    public static final byte[] getDCChrominanceValues() {
 	   return DC_CHROMINANCE_VALUES.clone();
    }

    public static final byte[] getDCLuminanceBits() {
 	   return DC_LUMINANCE_BITS.clone();
    }

    public static final byte[] getDCLuminanceValues() {
 	   return DC_LUMINANCE_VALUES.clone();
    }

    public static final int[] getDefaultChrominanceMatrix(int quality) {
 	   //
 	   int[] quant_chrominance = QUANT_CHROMINANCE.clone();

 	   if (quality <= 0)
            quality = 1;
 	   if (quality > 100)
            quality = 100;
 	   if (quality < 50)
            quality = 5000 / quality;
 	   else
            quality = 200 - quality * 2;

 	   for (int j = 0; j < 64; j++) {
                int temp = (quant_chrominance[j] * quality + 50) / 100;
                if ( temp <= 0) temp = 1;
                if (temp >= 255) temp = 255;
                quant_chrominance[j] = temp;
        }

 	   return quant_chrominance;
    }

    public static final int[] getDefaultLuminanceMatrix(int quality) {
 	   //
 	   int[] quant_luminance = QUANT_LUMINANCE.clone();

 	   if (quality <= 0)
            quality = 1;
 	   if (quality > 100)
            quality = 100;
 	   if (quality < 50)
            quality = 5000 / quality;
 	   else
            quality = 200 - quality * 2;

 	   for (int j = 0; j < 64; j++) {
                int temp = (quant_luminance[j] * quality + 50) / 100;
                if ( temp <= 0) temp = 1;
                if (temp >= 255) temp = 255;
                quant_luminance[j] = temp;
        }

 	   return quant_luminance;
    }

    public static final int[] getDeZigzagMatrix() {
 	   return DE_ZIGZAG_TRAVERSE_ORDER.clone();
    }

    public static final int[] getZigzagMatrix() {
 	   return ZIGZAG_TRAVERSE_ORDER.clone();
    }

    private JPGConsts() {}
 }
	/*
	* Copyright (c) 2014-2021 by Wen Yu
	*
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Public License 2.0 which is available at
	* http://www.eclipse.org/legal/epl-2.0.
	*
	* This Source Code may also be made available under the following Secondary
	* Licenses when the conditions for such availability set forth in the Eclipse
	* Public License, v. 2.0 are satisfied: GNU General Public License, version 2
	* or any later version.
	*
	* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
	*/

	package pixy.image.jpeg;

	/**
	* @author Wen Yu, yuwen_66@yahoo.com
	* @version 1.0 03/16/2012
	*/
	public class JPGConsts {
	// Constants related to metadata
	public static final String XMP_ID = "http://ns.adobe.com/xap/1.0/\0";
	// This is a non_standard XMP identifier which sometimes found in images from GettyImages
	public static final String NON_STANDARD_XMP_ID = "XMP\0://ns.adobe.com/xap/1.0/\0";
	public static final String XMP_EXT_ID = "http://ns.adobe.com/xmp/extension/\0";
	// Photoshop IRB identification with trailing byte [0x00].
	public static final String PHOTOSHOP_IRB_ID = "Photoshop 3.0\0";
	// EXIF identifier with trailing bytes [0x00, 0x00].
	public static final String EXIF_ID = "Exif\0\0";
	// ICC_PROFILE identifier with trailing byte [0x00].
	public static final String ICC_PROFILE_ID = "ICC_PROFILE\0";
	public static final String JFIF_ID = "JFIF\0"; // JFIF
	public static final String JFXX_ID = "JFXX\0"; // JFXX
	public static final String DUCKY_ID = "Ducky"; // no trailing NULL
	public static final String PICTURE_INFO_ID = "[picture info]"; // no trailing NULL
	public static final String ADOBE_ID = "Adobe"; // no trailing NULL

	public static final int SUBSAMPLING_NONE = 0; // aka 1x1 (4:4:4)
	public static final int SUBSAMPLING_422 = 1; // aka 2x1
	public static final int SUBSAMPLING_420 = 2; // aka 2x2

	/**
	* This is the order in which the after-DCT 8x8 block is traversed
	* used for reordering the QT(quantization Table) and the
	* zigzag traversed blocks
	*/
	private static final int[] ZIGZAG_TRAVERSE_ORDER = {
	0, 1, 8, 16, 9, 2, 3, 10,
	17, 24, 32, 25, 18, 11, 4, 5,
	12, 19, 26, 33, 40, 48, 41, 34,
	27, 20, 13, 6, 7, 14, 21, 28,
	35, 42, 49, 56, 57, 50, 43, 36,
	29, 22, 15, 23, 30, 37, 44, 51,
	58, 59, 52, 45, 38, 31, 39, 46,
	53, 60, 61, 54, 47, 55, 62, 63
	};

	// Reverses ZigZag reordering of the quantization Table
	private static final int[] DE_ZIGZAG_TRAVERSE_ORDER = {
	0, 1, 5, 6, 14, 15, 27, 28,
	2, 4, 7, 13, 16, 26, 29, 42,
	3, 8, 12, 17, 25, 30, 41, 43,
	9, 11, 18, 24, 31, 40, 44, 53,
	10, 19, 23, 32, 39, 45, 52, 54,
	20, 22, 33, 38, 46, 51, 55, 60,
	21, 34, 37, 47, 50, 56, 59, 61,
	35, 36, 48, 49, 57, 58, 62, 63
	};

	/**
	* This is the default quantization table for luminance
	* ISO/IEC 10918-1 : 1993(E), Annex, Table K.1
	*/
	private static final int[] QUANT_LUMINANCE = {
	16, 11, 10, 16, 24, 40, 51, 61,
	12, 12, 14, 19, 26, 58, 60, 55,
	14, 13, 16, 24, 40, 57, 69, 56,
	14, 17, 22, 29, 51, 87, 80, 62,
	18, 22, 37, 56, 68, 109, 103, 77,
	24, 35, 55, 64, 81, 104, 113, 92,
	49, 64, 78, 87, 103, 121, 120, 101,
	72, 92, 95, 98, 112, 100, 103, 99
	};

	/**
	* This is the default quantization table for chrominance
	* ISO/IEC 10918-1 : 1993(E), Annex, KTable K.2
	*/
	private static final int[] QUANT_CHROMINANCE = {
	17, 18, 24, 47, 99, 99, 99, 99,
	18, 21, 26, 66, 99, 99, 99, 99,
	24, 26, 56, 99, 99, 99, 99, 99,
	47, 66, 99, 99, 99, 99, 99, 99,
	99, 99, 99, 99, 99, 99, 99, 99,
	99, 99, 99, 99, 99, 99, 99, 99,
	99, 99, 99, 99, 99, 99, 99, 99,
	99, 99, 99, 99, 99, 99, 99, 99
	};

	private static final byte[] DC_LUMINANCE_BITS = {0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0};

	private static final byte[] DC_LUMINANCE_VALUES = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b};

	private static final byte[] DC_CHROMINANCE_BITS = {0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0};

	private static final byte[] DC_CHROMINANCE_VALUES = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b};

	private static final byte[] AC_LUMINANCE_BITS = {0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 125};

	private static final byte[] AC_LUMINANCE_VALUES = {0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21,
	0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, (byte)0x81, (byte)0x91, (byte)0xA1,
	0x08, 0x23, 0x42, (byte)0xB1, (byte)0xC1, 0x15, 0x52, (byte)0xD1, (byte)0xF0, 0x24, 0x33, 0x62, 0x72,
	(byte)0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35,
	0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56,
	0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77,
	0x78, 0x79, 0x7A, (byte)0x83, (byte)0x84, (byte)0x85, (byte)0x86, (byte)0x87, (byte)0x88, (byte)0x89,
	(byte)0x8A, (byte)0x92, (byte)0x93, (byte)0x94, (byte)0x95, (byte)0x96, (byte)0x97, (byte)0x98,
	(byte)0x99, (byte)0x9A, (byte)0xA2, (byte)0xA3, (byte)0xA4, (byte)0xA5, (byte)0xA6, (byte)0xA7,
	(byte)0xA8, (byte)0xA9, (byte)0xAA, (byte)0xB2, (byte)0xB3, (byte)0xB4, (byte)0xB5, (byte)0xB6,
	(byte)0xB7, (byte)0xB8, (byte)0xB9, (byte)0xBA, (byte)0xC2, (byte)0xC3, (byte)0xC4, (byte)0xC5,
	(byte)0xC6, (byte)0xC7, (byte)0xC8, (byte)0xC9, (byte)0xCA, (byte)0xD2, (byte)0xD3, (byte)0xD4,
	(byte)0xD5, (byte)0xD6, (byte)0xD7, (byte)0xD8, (byte)0xD9, (byte)0xDA, (byte)0xE1, (byte)0xE2,
	(byte)0xE3, (byte)0xE4, (byte)0xE5, (byte)0xE6, (byte)0xE7, (byte)0xE8, (byte)0xE9, (byte)0xEA,
	(byte)0xF1, (byte)0xF2, (byte)0xF3, (byte)0xF4, (byte)0xF5, (byte)0xF6, (byte)0xF7, (byte)0xF8,
	(byte)0xF9, (byte)0xFA
	};

	private static final byte[] AC_CHROMINANCE_BITS = {0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 119};

	private static final byte[] AC_CHROMINANCE_VALUES = {0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
	0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, (byte)0x32, (byte)0x81, (byte)0x08,
	0x14, 0x42, (byte)0x91, (byte)0xA1, (byte)0xB1, (byte)0xC1, 0x09, 0x23, 0x33, 0x52, (byte)0xF0,
	0x15, 0x62, 0x72, (byte)0xD1, 0x0A, 0x16, 0x24, 0x34, (byte)0xE1, 0x25, (byte)0xF1,
	0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43,
	0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63,
	0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A,
	(byte)0x82, (byte)0x83, (byte)0x84, (byte)0x85, (byte)0x86, (byte)0x87, (byte)0x88, (byte)0x89,
	(byte)0x8A, (byte)0x92, (byte)0x93, (byte)0x94, (byte)0x95, (byte)0x96, (byte)0x97, (byte)0x98,
	(byte)0x99, (byte)0x9A, (byte)0xA2, (byte)0xA3, (byte)0xA4, (byte)0xA5, (byte)0xA6, (byte)0xA7,
	(byte)0xA8, (byte)0xA9, (byte)0xAA, (byte)0xB2, (byte)0xB3, (byte)0xB4, (byte)0xB5, (byte)0xB6,
	(byte)0xB7, (byte)0xB8, (byte)0xB9, (byte)0xBA, (byte)0xC2, (byte)0xC3, (byte)0xC4, (byte)0xC5,
	(byte)0xC6, (byte)0xC7, (byte)0xC8, (byte)0xC9, (byte)0xCA, (byte)0xD2, (byte)0xD3, (byte)0xD4,
	(byte)0xD5, (byte)0xD6, (byte)0xD7, (byte)0xD8, (byte)0xD9, (byte)0xDA, (byte)0xE2, (byte)0xE3,
	(byte)0xE4, (byte)0xE5, (byte)0xE6, (byte)0xE7, (byte)0xE8, (byte)0xE9, (byte)0xEA, (byte)0xF2,
	(byte)0xF3, (byte)0xF4, (byte)0xF5, (byte)0xF6, (byte)0xF7, (byte)0xF8, (byte)0xF9, (byte)0xFA
	};

	public static final byte[] getACChrominanceBits() {
	return AC_CHROMINANCE_BITS.clone();
	}

	public static final byte[] getACChrominanceValues() {
	return AC_CHROMINANCE_VALUES.clone();
	}

	public static final byte[] getACLuminanceBits() {
	return AC_LUMINANCE_BITS.clone();
	}

	public static final byte[] getACLuminanceValues() {
	return AC_LUMINANCE_VALUES.clone();
	}

	public static final byte[] getDCChrominanceBits() {
	return DC_CHROMINANCE_BITS.clone();
	}

	public static final byte[] getDCChrominanceValues() {
	return DC_CHROMINANCE_VALUES.clone();
	}

	public static final byte[] getDCLuminanceBits() {
	return DC_LUMINANCE_BITS.clone();
	}

	public static final byte[] getDCLuminanceValues() {
	return DC_LUMINANCE_VALUES.clone();
	}

	public static final int[] getDefaultChrominanceMatrix(int quality) {
	//
	int[] quant_chrominance = QUANT_CHROMINANCE.clone();

	if (quality <= 0)
	quality = 1;
	if (quality > 100)
	quality = 100;
	if (quality < 50)
	quality = 5000 / quality;
	else
	quality = 200 - quality * 2;

	for (int j = 0; j < 64; j++) {
	int temp = (quant_chrominance[j] * quality + 50) / 100;
	if ( temp <= 0) temp = 1;
	if (temp >= 255) temp = 255;
	quant_chrominance[j] = temp;
	}

	return quant_chrominance;
	}

	public static final int[] getDefaultLuminanceMatrix(int quality) {
	//
	int[] quant_luminance = QUANT_LUMINANCE.clone();

	if (quality <= 0)
	quality = 1;
	if (quality > 100)
	quality = 100;
	if (quality < 50)
	quality = 5000 / quality;
	else
	quality = 200 - quality * 2;

	for (int j = 0; j < 64; j++) {
	int temp = (quant_luminance[j] * quality + 50) / 100;
	if ( temp <= 0) temp = 1;
	if (temp >= 255) temp = 255;
	quant_luminance[j] = temp;
	}

	return quant_luminance;
	}

	public static final int[] getDeZigzagMatrix() {
	return DE_ZIGZAG_TRAVERSE_ORDER.clone();
	}

	public static final int[] getZigzagMatrix() {
	return ZIGZAG_TRAVERSE_ORDER.clone();
	}

	private JPGConsts() {}
	}