📄 file_image_to_jpg.java
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writeBits(baos, HTAC[nrzeroes*16+category[32767+DU[i]]],needToPrint);
writeBits(baos, bitcode_val[32767+DU[i]],bitcode_len[32767+DU[i]]-1,needToPrint);//bitcode[32767+DU[i]]
i++;
}
if ( end0pos != 63 ) {
writeBits(baos, HTAC[0x00],needToPrint);
}
if(needToPrint){
System.out.println("");
}
} catch (Exception e) {
// TODO Auto-generated catch block
System.out.println("processDU "+e);
//e.printStackTrace();
}
return DC;
}
private int YDU[] = new int[64];
private int UDU[] = new int[64];
private int VDU[] = new int[64];
private void RGB2YUV(int[] img, int xpos, int ypos, int width, int height)
{
int pos=0;
for (int y=0; y<8; y++) {
for (int x=0; x<8; x++) {
try {
int P = 0;
if(xpos + x >= width) P = 0;
else if(ypos + y >= height) P = 0;
else P = img[(ypos+y)*width+xpos+x];
int R = ((P>>>16)&0xFF);
int G = ((P>>>8)&0xFF);
int B = ((P )&0xFF);
YDU[pos]=((( 29900)*R+( 58700)*G+( 11400)*B))/100000-128; //sure: -128
UDU[pos]=(((-16874)*R+(-33126)*G+( 50000)*B))/100000; //sure
VDU[pos]=((( 50000)*R+(-41869)*G+(-8131)*B))/100000; //sure
// if(YDU[pos] < 0)YDU[pos] += 128;
// if(UDU[pos] < 0)UDU[pos] += 128;
// if(VDU[pos] < 0)VDU[pos] += 128;
// if(YDU[pos] < 0)YDU[pos] *= -1;
// if(UDU[pos] < 0)UDU[pos] *= -1;
// if(VDU[pos] < 0)VDU[pos] *= -1;
//System.out.println(YDU[pos]+" "+UDU[pos]+" "+VDU[pos]);
pos++;
} catch (RuntimeException e) {
//System.out.println("x "+x+" y "+y+" img "+img.length+" index "+((ypos+y)*width+xpos+x)+": "+e);
// TODO Auto-generated catch block
//e.printStackTrace();
}
}
}
}
private void RGB2YUV(short[] img, int xpos, int ypos, int width, int height)
{
int pos=0;
for (int y=0; y<8; y++) {
for (int x=0; x<8; x++) {
try {
int P = 0;
if(xpos + x >= width) P = 0;
else if(ypos + y >= height) P = 0;
else P = img[(ypos+y)*width+xpos+x];
byte red = (byte) (P >>> 11);
red <<= 3;
byte green = (byte) ((P << 5) >>> 10);
green <<= 2;
byte blue = (byte) ((P << 11) >>> 11);
blue <<= 3;
int R = (red &0xFF);
int G = (green &0xFF);
int B = (blue &0xFF);
YDU[pos]=((( 29900)*R+( 58700)*G+( 11400)*B))/100000-128; //sure: -128
UDU[pos]=(((-16874)*R+(-33126)*G+( 50000)*B))/100000; //sure
VDU[pos]=((( 50000)*R+(-41869)*G+(-8131)*B))/100000; //sure
// if(YDU[pos] < 0)YDU[pos] += 128;
// if(UDU[pos] < 0)UDU[pos] += 128;
// if(VDU[pos] < 0)VDU[pos] += 128;
// if(YDU[pos] < 0)YDU[pos] *= -1;
// if(UDU[pos] < 0)UDU[pos] *= -1;
// if(VDU[pos] < 0)VDU[pos] *= -1;
//System.out.println(YDU[pos]+" "+UDU[pos]+" "+VDU[pos]);
pos++;
} catch (RuntimeException e) {
System.out.println("short x "+x+" y "+y+" img "+img.length+" index "+((ypos+y)*width+xpos+x)+": "+e);
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
public void JPEGEncoder(int quality) //:Number = 50
{
if (quality <= 0) {
quality = 1;
}
if (quality > 100) {
quality = 100;
}
int sf = 0;
if (quality < 50) {
sf = 5000 / quality;
} else {
sf = 200 - quality*2;
}
// Create tables
//MainCanvas.printMemory("initJPEGEncoder start");
initHuffmanTbl();
//MainCanvas.printMemory("initHuffman");
initCategoryNumber();
//MainCanvas.printMemory("initCategoryNumber");
initQuantTables(sf);
//MainCanvas.printMemory("initQuantTables");
}
public void close(){
ZigZag = null;
YTable = null;
UVTable = null;
fdtbl_Y = null;
fdtbl_UV = null;
YDC_HT = null;
UVDC_HT = null;
YAC_HT = null;
UVAC_HT = null;
std_dc_luminance_nrcodes = null;
std_dc_luminance_values = null;
std_ac_luminance_nrcodes = null;
std_ac_luminance_values = null;
std_dc_chrominance_nrcodes = null;
std_dc_chrominance_values = null;
std_ac_chrominance_nrcodes = null;
std_ac_chrominance_values = null;
category = null;
bitcode_len = null;
bitcode_val = null;
if(byteout != null){
try{
byteout.close();
}catch(Exception e){}
byteout = null;
}
DU = null;
YDU = null;
UDU = null;
VDU = null;
chunkData = null;
}
public byte[] encode(int[] image, int width, int height) {
// Initialize bit writer
//byteout = new ByteArray();
byteout = null;
byteout = new ByteArrayOutputStream();
bytenew=0;
bytepos=7;
// Add JPEG headers
writeWord(0xFFD8); // SOI
writeAPP1(width, height, false);
writeDQT();
writeSOF0(width,height);
writeDHT();
writeSOS();
// Encode 8x8 macroblocks
int DCY=0;
int DCU=0;
int DCV=0;
bytenew=0;
bytepos=7;
for (int ypos=0; ypos<height; ypos+=8) {
for (int xpos=0; xpos<width; xpos+=8) {
//System.out.println("image "+image.length+" width "+width+" height "+height+" xpos "+xpos+" ypos "+ypos);
RGB2YUV(image, xpos, ypos, width, height);
DCY = processDU(YDU, fdtbl_Y, DCY, YDC_HT, YAC_HT);
DCU = processDU(UDU, fdtbl_UV, DCU, UVDC_HT, UVAC_HT);
DCV = processDU(VDU, fdtbl_UV, DCV, UVDC_HT, UVAC_HT);
}
}
//System.out.println("encode 2");
// Do the bit alignment of the EOI marker
if ( bytepos >= 0 ) {
BitString fillbits = new BitString();
fillbits.len = (byte)(bytepos+1);
fillbits.val = (byte)((1<<(bytepos+1))-1);
writeBits(fillbits);
}
//System.out.println("encode 3");
writeWord(0xFFD9); //EOI
image = null;
System.gc();
return byteout.toByteArray();
}
byte[] thumbnail = null;
public byte[] encode(short[] image, int width, int height) {
return encode(image, width, height, null);
}
public byte[] encode(short[] image, int width, int height, byte[] thumbnailD) {
// Initialize bit writer
//byteout = new ByteArray();
byteout = null;
byteout = new ByteArrayOutputStream();
bytenew=0;
bytepos=7;
// Add JPEG headers
writeWord(0xFFD8); // SOI
if(thumbnailD != null){
thumbnail = thumbnailD;
writeAPP1(width, height, true);
}else writeAPP1(width, height, false);
writeDQT();
writeSOF0(width,height);
writeDHT();
writeSOS();
// Encode 8x8 macroblocks
int DCY=0;
int DCU=0;
int DCV=0;
bytenew=0;
bytepos=7;
for (int ypos=0; ypos<height; ypos+=8) {
for (int xpos=0; xpos<width; xpos+=8) {
//System.out.println("image "+image.length+" width "+width+" height "+height+" xpos "+xpos+" ypos "+ypos);
RGB2YUV(image, xpos, ypos, width, height);
DCY = processDU(YDU, fdtbl_Y, DCY, YDC_HT, YAC_HT);
DCU = processDU(UDU, fdtbl_UV, DCU, UVDC_HT, UVAC_HT);
DCV = processDU(VDU, fdtbl_UV, DCV, UVDC_HT, UVAC_HT);
}
}
// Do the bit alignment of the EOI marker
if ( bytepos >= 0 ) {
BitString fillbits = new BitString();
fillbits.len = (byte)(bytepos+1);
fillbits.val = (byte)((1<<(bytepos+1))-1);
writeBits(fillbits);
}
// .println("encode 3");
writeWord(0xFFD9); //EOI
image = null;
System.gc();
return byteout.toByteArray();
}
int readyDCY;
int readyDCU;
int readyDCV;
byte[][] chunkData;
public void readyEncode(int width, int height){
readyEncode(width, height, null);
}
public void readyEncode(int width, int height, byte[] thumbnailD) {
// Initialize bit writer
//byteout = new ByteArray();
int chunkNum = ((width/8)+((width%8)>0?1:0))*((height/8)+((height%8)>0?1:0));
chunkData = new byte[chunkNum][];
byteout = null;
byteout = new ByteArrayOutputStream();
bytenew=0;
bytepos=7;
// Add JPEG headers
writeWord(0xFFD8); // SOI
if(thumbnailD != null){
thumbnail = thumbnailD;
writeAPP1(width, height, true);
}else writeAPP1(width, height, false);
writeDQT();
writeSOF0(width,height);
writeDHT();
writeSOS();
// Encode 8x8 macroblocks
bytenew=0;
bytepos=7;
}
public void doEncode(ByteArrayOutputStream baos, int[] YDU, int[] UDU, int[] VDU, int DC_YUV[]){
doEncode(baos, YDU, UDU, VDU, DC_YUV, false);
}
public void doEncode(ByteArrayOutputStream baos, int[] YDU, int[] UDU, int[] VDU, int DC_YUV[], boolean needPrint){
bytenew = 0;
bytepos = 7;
// if(needPrint)System.out.print("YDU: ");
DC_YUV[0] = encodeProcessDU(baos, YDU, fdtbl_Y, DC_YUV[0], YDC_HT, YAC_HT, needPrint);
// if(needPrint)System.out.print("UDU: ");
DC_YUV[1] = encodeProcessDU(baos, UDU, fdtbl_UV, DC_YUV[1], UVDC_HT, UVAC_HT, needPrint);
// if(needPrint)System.out.print("VDU: ");
DC_YUV[2] = encodeProcessDU(baos, VDU, fdtbl_UV, DC_YUV[2], UVDC_HT, UVAC_HT, needPrint);
baos.write((byte) bytenew);
baos.write((byte) bytepos);
}
public int[] getDC_YUV(int[] YDU, int[] UDU, int[] VDU){
int tempYUV[] = new int[3];
tempYUV[0] = fDCTQuant(YDU, fdtbl_Y)[0];
tempYUV[1] = fDCTQuant(UDU, fdtbl_UV)[0];
tempYUV[2] = fDCTQuant(VDU, fdtbl_UV)[0];
return tempYUV;
}
public void chunkRotate(int ro, int width, int height){
try{
int bytebuf = 0;
int bytebufpos = 7;
int bytenew = 0;
int bytepos = 7;
int bottom = 0;
for(int a=0;a<chunkData.length;a++){
Main_Canvas.rotateProcess = 70+(a*20/chunkData.length);
// if(a == 899 || a== 900){
// System.out.println(a+": "+Main_Canvas.rotateProcess);
// }
if(chunkData[a] == null && a > 0){
chunkData[a] = chunkData[a-1];
}
for(int b=0;b<chunkData[a].length-1;b++){
bytenew = chunkData[a][b];
if(b == chunkData[a].length-2){
bottom = chunkData[a][chunkData[a].length-1]+1;
}else bottom = 0;
bytepos = 7;
while(bytepos >= bottom){
int tx = (bytenew & (1 << bytepos));
if (tx != 0) {
bytebuf |= (1 << bytebufpos);
}
bytepos--;
bytebufpos--;
if (bytebufpos < 0) {
if (bytebuf == 0xFF && (bytepos >= bottom || (bytepos == bottom-1 && bottom > 0))) {
writeByte((byte)(0xFF));
writeByte(0);
// if(a >= 75 && a <= 149){
// System.out.print((byte)(0xFF)+" ");
// System.out.print(0+" ");
// }
}
else {
writeByte((byte)bytebuf);
// if(a >= 75 && a <= 149){
// System.out.print((byte)bytebuf+" ");
// }
}
bytebufpos=7;
bytebuf=0;
}
}
if(bytenew == -1){
if(bytebufpos != 7){
b++;
}
}
}
// if(a >= 75 && a <= 149){
// System.out.println("");
// }
if(a >0)chunkData[a-1] = null;
}
// }
// for(int a=0;a<chunkData.length;a++){
// if(chunkData[a] != null){
// writeByte(chunkData[a]);
// for(int b=0;b<chunkData[a].length;b++){
// System.out.print(chunkData[a][b]+" ");
// }
// System.out.println("");
// }else System.out.println("chunkData null: "+a);
// }
}catch(Exception e){
System.out.println("Chunk Rotate: "+e);
}
}
public byte[] endEncode(){
// Do the bit alignment of the EOI marker
if ( bytepos >= 0 ) {
BitString fillbits = new BitString();
fillbits.len = (byte)(bytepos+1);
fillbits.val = (byte)((1<<(bytepos+1))-1);
writeBits(fillbits);
}
writeWord(0xFFD9); //EOI
System.gc();
return byteout.toByteArray();
}
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