mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-11-24 02:59:07 +08:00
58e06c8c45
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@670 d0cd1f9f-072b-0410-8dd7-cf729c803f20
640 lines
15 KiB
HTML
640 lines
15 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<meta name="generator" content="AsciiDoc 8.5.2" />
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<title>UNICHARSET_EXTRACTOR(1)</title>
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<style type="text/css">
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/* Debug borders */
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p, li, dt, dd, div, pre, h1, h2, h3, h4, h5, h6 {
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/*
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border: 1px solid red;
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*/
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}
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body {
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margin: 1em 5% 1em 5%;
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}
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a {
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color: blue;
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text-decoration: underline;
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a:visited {
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em {
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strong {
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tt {
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color: navy;
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hr {
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p {
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margin-top: 0.5em;
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pre {
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div.tableblock, div.imageblock, div.exampleblock, div.verseblock,
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div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
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div.listingblock > div.content {
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background: #f4f4f4;
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div.quoteblock, div.verseblock {
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div.verseblock + div.attribution {
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div.admonitionblock td.content {
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div.exampleblock > div.content {
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dl {
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dt {
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ol.upperalpha {
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}
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ol.upperroman {
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div.compact ul, div.compact ol,
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tfoot {
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td > div.verse {
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div.hdlist {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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div.hdlist tr {
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.footnote, .footnoteref {
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font-size: 0.8em;
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span.footnote, span.footnoteref {
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vertical-align: super;
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#footnotes {
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margin: 20px 0 20px 0;
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padding: 7px 0 0 0;
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}
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#footnotes div.footnote {
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margin: 0 0 5px 0;
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}
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#footnotes hr {
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border: none;
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border-top: 1px solid silver;
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height: 1px;
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text-align: left;
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margin-left: 0;
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width: 20%;
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}
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@media print {
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div#footer-badges { display: none; }
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}
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div#toc {
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margin-bottom: 2.5em;
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}
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color: #527bbd;
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font-weight: bold;
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margin-top: 1.0em;
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margin-bottom: 0.1em;
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div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
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font-size: 0.9em;
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}
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/* Overrides for manpage documents */
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h1 {
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padding-top: 0.5em;
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padding-bottom: 0.5em;
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border-top: 2px solid silver;
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border-bottom: 2px solid silver;
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}
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h2 {
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border-style: none;
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div.sectionbody {
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margin-left: 5%;
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@media print {
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div#toc { display: none; }
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}
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/* Workarounds for IE6's broken and incomplete CSS2. */
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div.sidebar-content {
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background: #ffffee;
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border: 1px solid silver;
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padding: 0.5em;
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}
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div.sidebar-title, div.image-title {
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color: #527bbd;
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font-family: sans-serif;
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font-weight: bold;
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margin-top: 0.0em;
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margin-bottom: 0.5em;
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}
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div.listingblock div.content {
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border: 1px solid silver;
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background: #f4f4f4;
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padding: 0.5em;
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}
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div.quoteblock-attribution {
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padding-top: 0.5em;
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text-align: right;
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}
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div.verseblock-content {
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white-space: pre;
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}
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div.verseblock-attribution {
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padding-top: 0.75em;
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text-align: left;
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}
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div.exampleblock-content {
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border-left: 3px solid #dddddd;
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padding-left: 0.5em;
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}
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/* IE6 sets dynamically generated links as visited. */
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div#toc a:visited { color: blue; }
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</style>
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<script type="text/javascript">
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/*<+'])');
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// Function that scans the DOM tree for header elements (the DOM2
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// nodeIterator API would be a better technique but not supported by all
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// browsers).
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var iterate = function (el) {
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for (var i = el.firstChild; i != null; i = i.nextSibling) {
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if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {
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var mo = re.exec(i.tagName);
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if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {
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result[result.length] = new TocEntry(i, getText(i), mo[1]-1);
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}
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iterate(i);
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}
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}
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}
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iterate(el);
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return result;
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}
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var toc = document.getElementById("toc");
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var entries = tocEntries(document.getElementById("content"), toclevels);
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a.href = "#" + entry.element.id;
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a.appendChild(document.createTextNode(entry.text));
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var div = document.createElement("div");
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div.appendChild(a);
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div.className = "toclevel" + entry.toclevel;
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toc.appendChild(div);
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if (entries.length == 0)
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toc.parentNode.removeChild(toc);
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},
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/////////////////////////////////////////////////////////////////////
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// Footnotes generator
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/////////////////////////////////////////////////////////////////////
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/* Based on footnote generation code from:
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* http://www.brandspankingnew.net/archive/2005/07/format_footnote.html
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*/
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footnotes: function () {
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var cont = document.getElementById("content");
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var noteholder = document.getElementById("footnotes");
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var spans = cont.getElementsByTagName("span");
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var refs = {};
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var n = 0;
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for (i=0; i<spans.length; i++) {
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n++;
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// Use [\s\S] in place of . so multi-line matches work.
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// Because JavaScript has no s (dotall) regex flag.
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note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1];
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noteholder.innerHTML +=
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"<div class='footnote' id='_footnote_" + n + "'>" +
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"<a href='#_footnoteref_" + n + "' title='Return to text'>" +
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n + "</a>. " + note + "</div>";
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spans[i].innerHTML =
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"[<a id='_footnoteref_" + n + "' href='#_footnote_" + n +
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"' title='View footnote' class='footnote'>" + n + "</a>]";
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var id =spans[i].getAttribute("id");
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if (id != null) refs["#"+id] = n;
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}
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}
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if (n == 0)
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noteholder.parentNode.removeChild(noteholder);
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else {
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// Process footnoterefs.
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for (i=0; i<spans.length; i++) {
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if (spans[i].className == "footnoteref") {
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var href = spans[i].getElementsByTagName("a")[0].getAttribute("href");
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href = href.match(/#.*/)[0]; // Because IE return full URL.
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n = refs[href];
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spans[i].innerHTML =
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"[<a href='#_footnote_" + n +
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"' title='View footnote' class='footnote'>" + n + "</a>]";
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}
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}
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}
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}
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}
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/*]]>*/
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</script>
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</head>
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<body>
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<div id="header">
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<h1>
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UNICHARSET_EXTRACTOR(1) Manual Page
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</h1>
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<h2>NAME</h2>
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<div class="sectionbody">
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<p>unicharset_extractor -
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extract unicharset from Tesseract boxfiles
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</p>
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</div>
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</div>
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<div id="content">
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<h2 id="_synopsis">SYNOPSIS</h2>
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<div class="sectionbody">
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<div class="paragraph"><p><strong>unicharset_extractor</strong> <em>[-D dir]</em> <em>FILE</em>…</p></div>
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</div>
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<h2 id="_description">DESCRIPTION</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Tesseract needs to know the set of possible characters it can output.
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To generate the unicharset data file, use the unicharset_extractor
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program on the same training pages bounding box files as used for
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clustering:</p></div>
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<div class="literalblock">
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<div class="content">
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<pre><tt>unicharset_extractor fontfile_1.box fontfile_2.box ...</tt></pre>
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</div></div>
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<div class="paragraph"><p>The unicharset will be put into the file <em>dir/unicharset</em>, or simply
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<em>./unicharset</em> if no output directory is provided.</p></div>
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<div class="paragraph"><p>Tesseract also needs to have access to character properties isalpha,
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isdigit, isupper, islower, ispunctuation. all of this auxilury data
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and more is encoded in this file. (See unicharset(5))</p></div>
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<div class="paragraph"><p>If your system supports the wctype functions, these values will be set
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automatically by unicharset_extractor and there is no need to edit the
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unicharset file. On some older systems (eg Windows 95), the unicharset
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file must be edited by hand to add these property description codes.</p></div>
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<div class="paragraph"><p><strong>NOTE</strong> The unicharset file must be regenerated whenever inttemp, normproto
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and pffmtable are generated (i.e. they must all be recreated when the box
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file is changed) as they have to be in sync. This is made easier than in
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previous versions by running unicharset_extractor before mftraining and
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cntraining, and giving the unicharset to mftraining.</p></div>
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</div>
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<h2 id="_see_also">SEE ALSO</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>tesseract(1), unicharset(5)</p></div>
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<div class="paragraph"><p><a href="http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3">http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3</a></p></div>
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</div>
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<h2 id="_history">HISTORY</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>unicharset_extractor first appeared in Tesseract 2.00.</p></div>
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</div>
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<h2 id="_copying">COPYING</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Copyright (C) 2006, Google Inc.
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Licensed under the Apache License, Version 2.0</p></div>
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</div>
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<h2 id="_author">AUTHOR</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>The Tesseract OCR engine was written by Ray Smith and his research groups
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at Hewlett Packard (1985-1995) and Google (2006-present).</p></div>
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</div>
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</div>
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<div id="footnotes"><hr /></div>
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<div id="footer">
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<div id="footer-text">
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Last updated 2012-02-09 09:19:05 PDT
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</div>
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</body>
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