4. Extrahieren von Bildern aus EPS - Problemmit ASCII85 und Bildanzeige

Extrahieren von Bildern aus EPS - Problemmit ASCII85 und Bildanzeige

  • D

    Hallo miteinander,

    ich habe ein gewaltiges Problem mit dem Extrahieren von Bildern aus einem EPS, welches in InDesign erstellt wurde.

    Grundlage:

    %ALDImageFileName: Speicher:kleinsbildirgendwieirgendwaswiedueshabenwillst.jpg
    %ALDImageDimensions: 30 30
    %ALDImageCropRect: 0 0 30 30
    %ALDImageCropFixed: 0 0 30 30
    %ALDImagePosition: 203.8677 344.8913 203.8677 359.2913 218.2677 359.2913 218.2677 344.8913
    %ALDImageType: 4 8
    %%BeginObject: image
    [14.4 0 0 14.4 203.868 344.891 ]ct
    snap_to_device
    Adobe_AGM_Image/AGMIMG_fl cf /ASCII85Decode fl /RunLengthDecode filter ddf
    <<
    /T 1
    /W 30
    /H 30
    /M[30 0 0 -30 0 30 ]
    /BC 8
    /D[0 1 0 1 0 1 0 1 ]
    /DS [
    [AGMIMG_fl 30 string /rs cvx /pop cvx] cvx
    [AGMIMG_fl 30 string /rs cvx /pop cvx] cvx
    [AGMIMG_fl 30 string /rs cvx /pop cvx] cvx
    [AGMIMG_fl 30 string /rs cvx /pop cvx] cvx
    ]
    /O 3

    %%BeginBinary: 1
    img
    p&G-p!<E*"!<<3"!!!&i!!30!Vl\`q!V-m!WW3&!r`0#!Wh]h!!20]!WW3qZqZ^!!!!&f!!30!WE′!!WE′!WE'! !WE'!<<#nc/[l!W<!#!WW3%h>dNVnGiXl!<<-)!!'"!<<2f!<!!<3)a!!!&t!!*-%kl:\\ar;Zm" !!2He#6G2G(D[>Z!<*#e!!WKUEK,/l!r`0"!V.!!Wi?'-t[mD-NjDN!!2Zk!!3#u"T]4OR%8!!!&h !!<6)*\\I@D!\\,8pq>g3h%KQP0';ta-rr2ho&-2b3mf3Y*Q/q,jk2D[9"76'h!=o#B!Y,22n,Nn!!!=Q! 0.ee,0/"XS!VHHl!!E<'!"[l]rrUsd!Ug!r&'a/!k3(mej38#8mJm8&'`/UF'`J.(!"8l.+"o,p/hSe- /M8.8!!<6%!i#Yn!<2rs!2Ao^NZFPk2tpjkND!jP3r;O%29TU'o-b%e'H-!=:8,0/"h-.kN>(.gkeH "T^(Js8W&srrE$$rr;gE!V-4"""*$ljlY^djQYmmi$\\'q!W9(p([Q1nc/dn!#@(:r[nC..kE8)/emgU
    !<IHErs8W(rr<#trr76B!:p1!CZadBk2kmhj65^iD"%E-5O?k'`&OEM"0,!<<uh0.ee0/h\e,/h.k2
    !!    +arVm-s8W)us8J2U!;Z[(L?.U[kN:sflf@0hK^fD!=T\>'a5?f'c%2YnGit6/1iM*/1iA*.kWFi
    nc/dn!I+SBqYpWrrcdo5!<N60C$4[@ki_hl0.?lD".K0!=9MV'c%S_'f!Vnc01&!!t50/M8P+/h8J) .gH+F!!+PDrVllsrVlrp.KT,@#QauQip#Ifk3*$4ki:gb-3Nc<$j.4Z'GV>s'bqJt('F(,%06GL/hJ_. .k<;..j"f]!!32!rql]tr;WMmmf3c\k2tsgk2tmikEZ,Kn,NJ!'`/UJ'G_,X!V-6i!=L8/2&S./M&=P
    !!2Ti"9AV]s8N#t"o\JY&c_t!"-g0j6,RdkNBr!!r2ii!!!]1'a,9f'*84(!"Ar/""YuT/M8Y)!WW3
    nc0%!!!!Zs8N#ts76\`i!"T,3!!3\\bl0.?qjkC7H!!;\`lrW!!#!>PMJ!u;Ub!Ugf!=JlU/M/S*/ggZ#
    !!2Ng3K)as8N&tjT#8]m/R@3k2b[ck03)j!>?4H'`\\p6!!**(r[e6p.kWIZmJm:h!#kk:#.sp7ru_:B mJmV6jQ>U%kN:kH!!!)h!!!'!'`\\gE'`eC:mf3^r!=pb8/ds9_.h;[J!!u[*s8GIerr6%#m/RGck3(kk kNM&%!Up'o!<<*)'bhDfrY5G=!Vufj!"K#0!#mOB.0(kM0,afj!V-u!<A8^s6B[Es8S8_!U]poKBMCG
    !7'iKECN@#RhF_'*&[\\'b'X5r;[9-!$a!F*W[<7.jP)q!V-4#!<<,As8T>(W;lnB!!!&g!"63skFhmD jlEuS!!2Ng#S7^d%KHtR'bTm7!s/H(/-mj['\n!/1Ukk!"985s8@'?Du]k7%KHP#!"8l0KC71C'%l, jla?!!<6%!!3'6!X\o6rY5J8!!2Qh#Ri::0*I/1US%.4)q5Q:Zg2ukf6s8P=a!V-t!]]?)jY?ff kN:qhmJmFp()7Pf!!N99!!Vcjl1NL.KKPM/1iIi!!3'!o,F%!dakFpBL[$pAb/A!Up's!H@5cfqK\
    hWF!BmJmV%'GV;    !!J'FFm3!!WH(!?WpE,Q7ZH+tP;f!!2foq>^W-s8Tn6!!L"8s0r.!!">[bkcXsf !3>;FU]CPd!!<]G'bL?E!tZ.^&+9K$!\\#\P)?'U>'eMg!!2Zk!W\`9g.KhLB.ATL&_2?"7Q9n!RU)n I/X\*KGN@l9"Rc jQ/].!WYOLl&b?6"9AcD'aFX;"9oSU%0>nt$NV(q!rr<%"YC_q"7Z@"!<<+Eq@Wc/!#,C9"9&;k!!E?)
    D;u0+!!<qtS-&0["T\T'5EXA!!33:%da5t!<<]/!!3u#!FZ-!!A;d!!2ipq#CKu! !!WK)KEM8T"RZ6i2so,!<<Q0li77k!!302so,!<<Q0li77k!!30!<</h!!!'!!!E<'!!!&c!"8o/!!'#"98E'!WW;h!!!'!
    !!NB'!<<    #n,N[o!<<#!!!'!!!!&f!!E<&!!-"!!!'!!!**%o)K!s!!-$!<<#!!<-"!Wi?&l2Ueb
    rVup!q#Gp~>

    %%EndBinary
    %%EndObject

    Orginal Bild Größe 553,9 KB

    Nach dem decode nur noch eine Größe von 1,8 KB

    Versuch 1.

    public class ASCII85Decode {

    private ByteBuffer buf;

    /**
    * initialize the decoder with byte buffer in ASCII85 format
    */
    private ASCII85Decode(ByteBuffer buf) {
    this.buf = buf;
    }

    /**
    * get the next character from the input.
    * @return the next character, or -1 if at end of stream
    */
    private int nextChar() {
    // skip whitespace
    // returns next character, or -1 if end of stream
    while (buf.remaining() > 0) {
    char c = (char) buf.get();

    if (!isWhiteSpace(c)) {
    return c;
    }
    }

    // EOF reached
    return -1;
    }

    public static boolean isWhiteSpace(int c) {
    return (c == ' ' || c == '\t' || c == '\r' || c == '\n'
    || c == 0 || c == 12);
    // 0=nul, 12=ff
    }

    /**
    * decode the next five ASCII85 characters into up to four decoded
    * bytes. Return false when finished, or true otherwise.
    *
    * @param baos the ByteArrayOutputStream to write output to, set to the
    * correct position
    * @return false when finished, or true otherwise.
    */
    private boolean decode5(ByteArrayOutputStream baos)
    throws PDFParseException {
    // stream ends in ~>
    int[] five = new int[5];
    int i;
    for (i = 0; i < 5; i++) {
    five[i] = nextChar();
    if (five[i] == '~') {
    if (nextChar() == '>') {
    break;
    } else {
    throw new PDFParseException(
    "Bad character in ASCII85Decode: not ~>");
    }
    } else if (five[i] >= '!' && five[i] <= 'u') {
    five[i] -= '!';
    } else if (five[i] == 'z') {
    if (i == 0) {
    five[i] = 0;
    i = 4;
    } else {
    throw new PDFParseException(
    "Inappropriate 'z' in ASCII85Decode");
    }
    } else {
    throw new PDFParseException(
    "Bad character in ASCII85Decode: " + five[i]
    + " (" + (char) five[i] + ")");
    }
    }

    if (i > 0) {
    i -= 1;
    }

    int value = five[0] * 85 * 85 * 85 * 85 + five[1] * 85 * 85
    * 85 + five[2] * 85 * 85 + five[3] * 85 + five[4];

    for (int j = 0; j < i; j++) {
    int shift = 8 * (3 - j);
    baos.write((byte) ((value >> shift) & 0xff));
    }

    return (i == 4);
    }

    /**
    * decode the bytes
    * @return the decoded bytes
    */
    private ByteBuffer decode() throws PDFParseException {
    // start from the beginning of the data
    buf.rewind();

    // allocate the output buffer
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    // decode the bytes
    while (decode5(baos)) {
    }

    return ByteBuffer.wrap(baos.toByteArray());
    }

    /**
    * decode an array of bytes in ASCII85 format.
    * <p>
    * In ASCII85 format, every 5 characters represents 4 decoded
    * bytes in base 85. The entire stream can contain whitespace,
    * and ends in the characters '~>'.
    *
    * @param buf the encoded ASCII85 characters in a byte buffer
    * @param params parameters to the decoder (ignored)
    * @return the decoded bytes
    */
    public static ByteBuffer decode(ByteBuffer buf)
    throws PDFParseException {
    ASCII85Decode me = new ASCII85Decode(buf);
    return me.decode();
    }

    }

    Versuch 2.

    public class Ascii85Decode {
    private final FileOutputStream fos;

    private Ascii85Decode() throws FileNotFoundException {
    File f = new File("/home/markus/1/test/bild.jpg");
    fos = new FileOutputStream(f);

    }

    @Override
    protected void finalize() throws Throwable {
    fos.close();
    super.finalize();
    }

    public static byte[] decode(byte[] in) throws FileNotFoundException, IOException {
    Ascii85Decode ascii85Decode = new Ascii85Decode();
    ascii85Decode.setData(in);
    ascii85Decode.decode85();

    return null;
    }
    static long pow85[] = {85 * 85 * 85 * 85, 85 * 85 * 85, 85 * 85, 85, 1};
    private byte[] in;

    private void setData(byte[] in) {
    this.in = in;
    }

    void wput(long tuple, int bytes) throws IOException {
    switch (bytes) {
    case 4:
    putchar((int) (tuple >> 24));
    putchar((int) (tuple >> 16));
    putchar((int) (tuple >> 8));
    putchar((int) tuple);
    break;
    case 3:
    putchar((int) (tuple >> 24));
    putchar((int) (tuple >> 16));
    putchar((int) (tuple >> 8));
    break;
    case 2:
    putchar((int) (tuple >> 24));
    putchar((int) (tuple >> 16));
    break;
    case 1:
    putchar((int) (tuple >> 24));
    break;

    }
    }

    void decode85() throws IOException {
    long tuple = 0;
    int c, count = 0;
    int i=0;
    for (;;) {
    switch (c = in[i]) {
    default:
    if (c < '!' || c > 'u') {
    System.err.println("%s: bad character in ascii85 region: %#o\n");
    System.exit(1);
    }
    tuple += (c - '!') * pow85[count++];
    if (count == 5) {
    wput(tuple, 4);
    count = 0;
    tuple = 0;
    }
    break;
    case 'z':

    if (count != 0) {
    System.err.println("%s: z inside ascii85 5-tuple\n");
    System.exit(1);
    }
    putchar(0);
    putchar(0);
    putchar(0);
    putchar(0);
    break;
    case '~':
    if (in[i+1] == '>') {
    if (count > 0) {
    count--;
    tuple += pow85[count];
    wput(tuple, count);

    }
    c = in[i+1];
    return;
    }
    System.err.println("%s: ~ without > in ascii85 section\n");
    System.exit(1);
    case '\n':
    case '\r':
    case '\t':
    case ' ':
    case '\0':
    case '\f':
    case '\b':
    case 0177:
    break;

    }
    i++;
    }

    }

    private void putchar(int l) throws IOException {
    //System.out.write(l);
    fos.write(l);
    }
    }

    Ich wäre sehr dankbar, wenn mir da jemand bei der Problembehebung helfen könnte!

    Gruß Ducky

    0
  • D

    Ähm... und was ist das Problem?

    0
  • ?

    Crosspost, keine Code Tags und auch keine Frage. Du brauchst nicht erwarten, dass du so in irgendeinem der Foren in die du gepostet hast eine Antwort bekommst...

    0
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