The Dilate (Grow) feature is useful for making a font bolder. By growing small groups of pixels, this feature can actually “connect the dots” of dot matrix print. However, too high a value can over-fill characters in the open spaces of characters such as ‘a' or ‘e'. Lower this value if the characters start touching one another.
Grow is processed before Erode. This can change sparse dot-matrix print into characters resembling those from a laser printer, dramatically increasing OCR accuracy on sparse dot matrix print, raising recognition rates from near 0% to over 95% in some cases.
|
Option |
Description |
|---|---|
|
Amount |
The distance to extend the black pixels. Range 1-500. |
|
Diagonal Only |
Black pixels are extended in a diagonal direction. This option is only available for the following combinations: Up & Left, Up & Right, Down & Left, Down & Right. |
Direction
|
Option |
Description |
|---|---|
|
Left |
The dilation is applied and pixels are reduced in the left edge. |
|
Up |
The dilation is applied and pixels are reduced in the top edge. |
|
Right |
The dilation is applied and pixels are reduced in the right edge. |
|
Down |
The dilation is applied and pixels are reduced in the bottom edge. |