In den KADMOS-Klassifizierungsprogrammen (die für KADMOS-Benutzer nicht sichtbar sind) sind wesentliche Verbesserungen umgesetzt worden. Für die Verbesserung der Erkennung mussten alle Klassifikatoren neu berechnet werden. Über mehrere Monate haben alle unsere Computer in Kreuzlingen Tag und Nacht gearbeitet. Das Ergebnis ist eine bemerkenswerte Verbesserung der isolierten Zeichenerkennung. Alle anderen Schnittstellen sind gegenüber Version 6.0 unverändert geblieben.
Up to now Kadmos supported recognition of single characters, lines, and paragraphs. Now the recognition of almost
any documents is supported. For this a new function re_layout() is provided. It looks in documents for text areas
and returns their positions as circumscribing rectangles.
KADMOS wird häufig zum Lesen der Kodierzeilen von Pässen und Ausweisen eingesetzt. Ein Problem bereitet hier immer
wieder die Bildvorverarbeitung sowie the Auffinden der Kodierzeilen selbst. Für diese Anwendungen wurde eine eigene
Funktion rep_idcard() bereitgestellt. Sie liefert die Resultate in der gleichen Form als hätte man rep_do()
genau auf den Bildausschnitt der Kodierzeilen angewendet. rep_idcard() ist zusätzlich als Exe oder Binary
verfügbar, thes aus der Kommandozeile aufgerufen werden kann: "idcard Bild-Datei Klassifikator". Die Ausgabe erfolgt als
Xml-Datei mit gleichem Namen wie die Bild-Datei.
With the more comprehensive function re_page() the text areas can assigned classifiers, with which automatically
recognition of those text areas is performed.
Kadmos is applied extensively for reading the coding lines of ID cards and passports. One common problem
here is image preprocessing and finding the coding lines themselves. For this applications a special
function rep_idcard() is provided. It delivers the results of recognition the same way as
rep_do() if it gets applied directly on the coding lines. rep_idcard() additionally also is
available as exe file or binary which can be called directly from the command line: "idcard image_file
classifier". As output an XML file with the name of the image_ file is generated.
To improve recognition accuracy on images with noisy background a new technology has been implemented. If the
parameter OPTIONS_rel_REC_REPEAT is set, badly recognized single characters are read again
directly from the original gray or color image. Then they are binarized again with changed parameters,
dependent on their measured stroke width.
Now the output of the results as XML file is implemented. For this only the parameter TEXT_FORMAT_XML
has to be set with the functions re?_textline(). This also holds for the new functions rep_text()
and page_text() which enable the text output of the results of rep_do() and re_page().
The functions re?_textline(), rep_textline(), and page_text() now return short
or long spaces with one blank only. The old solution - to return the estimated number of blanks - was dependent on
the blank width of the output font, which is not known at time of recognition. The estimated number of blanks is still
returned in RelGraph.leading_blanks, except of the beginning of the line.
The old define CODE_UNICODE has been replaced by CODE_UTF_16. This avoids misunderstandings between Microsofts Unicode
(wchar_t as unsigned short) and Linux (wchar_t as unsigned int). The newly implemented
CODE_UTF_32 denotes the 32 bit Unicode.
With MSVC no libraries with the compiler switch /Md (multithreaded dll) are provided any more. In the past they
have lead to problems several times, especially when the applications should run under new Windows versions.
Concerned are libraries like rec_md.lib or rel_md.lib, those that have the ending
_md in their filename.