Operation Manual

Readiris 16 - User Guide
40
Despeckle
Sometimes documents contain a lot of "noise" - little black spots that occur when scanning low-quality
documents or using bad scanner settings.
To remove these little black spots, use the Despeckle slider. The more you move it to the right, the larger
the spots that will be removed.
The results on the binarized image are shown immediately. If the results are not satisfactory, use the Undo
button to restore the settings.
Lines
Readiris is now able to remove vertical and horizontal lines to improve the text recognition.
Note that the lines are not removed from the output documents, they are simply removed before
doing the recognition.
To remove vertical lines:
Select Remove vertical lines.
Enter values for the 3 parameters:
Minimum length: minimum length (in pixels) of the lines to remove.
Maximum thickness: maximum thickness (in pixels) of the lines to remove.
Maximum gap: maximum line gap (in pixels) to close, in case of broken, interrupted lines.
To remove horizontal lines:
Select Remove horizontal lines.
The same parameters are available.
When you are done adjusting the image quality, click X.
Important note: the Image Adjustment options are applied the binarized image only. Once you have
applied them, the original image is displayed again.