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♦ OCR Smoothing/ Background Removal
The OCR smoothing is the function to make smooth the notched part of line-drawing, and
the Background Removal is the function to remove the uneven background.
These functions are enabled when it is selected.
For further information, please refer to the User’s guide attached to the IPC board since the
function to be operated is different by the type of IPC.
At IPC-3/3D, [Noise Removal] and [OCR smoothing/ Background removal] is enabled
exclusively.
♦ Noise Removal
This option automatically removes spots that appear as black stains in a white area and
spots that appear as white stains in a black area.
This option uses an algorithm that removes particles from 2 x 2 to 5 x 5 dot matrixes. The
size of one dot depends on the resolution setting, and is equivalent to 1/400 inch for 400 dpi.
Particles are distinguished from the text by whether they are connected to other dots within
the specified number of pixels.
At IPC-3/3D, [Noise Removal] and [OCR smoothing/ Background removal] is enabled
exclusively.
Figure Advance dialog (DTC Mode) <IPC-3/3D and IPC-4D installed>