Datasheet

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USER'S GUIDE
The option "Despeckle" concerns the black-and-white image. “Despeckling”
means that the “parasite pixels” (also called “salt and pepper noise”) will be
removed from the black-and-white images. The user shouldn’t erase spots that
are too big, otherwise he runs the risk of erasing the dots on "i" etc., portions of
dot matrix letters etc.!
Clicking the button "Load Image" allows to open and recognize prescanned
images. This is purely a diagnostic feature.
Clicking the button "Save Image" saves the scanned image in a graphic file.
Three file formats are available: greyscale and black-and-white Windows bitmaps
(BMP) and a proprietary black-and-white graphic format IRISPen Graphic.
IRISPen graphics should be used for diagnostic purposes only, bitmap files can
also be used to save small images - logos, signatures, mathematical formulae etc.
Thanks to the scan test mode, the user can decide whether an image is suitable to
be saved. He can scan several times and save the scanned image which he likes
most because it isn’t skewed, distorted etc.
The option "Fit to Window" ensures that the entire image is displayed in the
scan test window, whatever the length of the scanned line may be. (The line
length is limited to 12" (30.5 cm.) per scan.) With this option disabled, the image
isn’t compressed horizontally and the scroll bar is used to display various parts of
the image successively.
When the scanned line is very long, the user may have to scroll to display the
recognized text entirely. He places the cursor in the text zone and presses the
End key to go directly to the end of the recognized text; he presses Home to
return to the beginning.
The option "Recognize" sees to it that all scanned or opened images are rec-
ognized. When the scan test mode is used to save graphics instead of scanning
data, this option can be disabled: scanning a graphic, the IRISPen software won’t
find any text anyway. (When the reading mode "Black-and-White Bitmap to
Clipboard" or "Greyscale Bitmap to Clipboard" is selected in the IRISPen appli-
cation window, the option "Recognize" is replaced by the option "Bitmap to Clip-
board".)
7chapter6.p65 2/16/2001, 3:29 PM21