Make sure the Train user pattern radio button on the
Recognition tab (Tools>Options menu) in the
Training group is enabled.
Click the 2-Read button. FineReader will start
recognition. Whenever it comes across an unknown character, the
Pattern
Training dialog will open, and the character image
displayed within it.
Training to
recognize a character:
The frame in the top dialog window should enclose a single
character, and this character must be fully enclosed by
the frame. If the frame encloses only part of a character or more
than one character, click the frame borders and move them so that
the above-stated requirements are met. The and
buttons move the frame border as well (and are
useful for training italic symbols - see below). Once you have
positioned the frame correctly, type in the character and click the
Train button.
Note:
You may only train the system to read characters included in
the alphabet. If you wish to train FineReader to read characters
that cannot be entered from the keyboard, use a combination of two
characters to denote these non-existent characters or copy the
required character from the Character Table (click the
button in the Pattern Training
dialog to open the Character Table).
If you wish to train the system to retain character formatting,
select the corresponding Italic or Bold item in the
Pattern
Training dialog before clicking the Train
button.
Make sure that only uppercase/lowercase characters are entered
when training uppercase/lowercase character images
respectively.
If you make a mistake during training, click the Back
button to return the frame to its previous position. The last
"image-character" pair to be entered will automatically be removed
from the pattern. Note that this "undo" function is limited to the
last word trained.
Training to recognize
ligatures
A ligature is a combination of two or three "glued" characters,
for example, fi, fl, ffi, etc. These characters are difficult to
separate because they are "glued" as part of the printing process.
In fact, better results can be obtained by treating them as
"single" compound characters.
Training ligatures is no different to training separate
characters:
Type the necessary character combination and click the
Train button.
The frame in the top dialog window should enclose theentire ligature. You can move the frame border using
the mouse or by clicking the and
buttons.
Each pattern may contain up to 1000 new
characters. However, you should not create too many ligatures,
as it may affect the recognition quality
negatively.
You should also take the following limitations into account
when you train FineReader:
FineReader doesn't differentiate between certain characters
which are usually considered different. Such images are
recognized as one and the same character. For example, the
straight ('), right (’) and left (‘) apostrophes are kept in the
pattern as one character - the straight apostrophe. Thus, you'll
never see the right and left apostrophes in the recognized text,
even if you try to train them.
In some cases a certain image is recognized as a certain
character depends on their environment.
and
buttons move the frame border as well (and are
useful for training italic symbols - see below). Once you have
positioned the frame correctly, type in the character and click the
Train button.
button in the Pattern Training
dialog to open the Character Table).