Scanning

1. How to scan

Before scanning, you must take into consideration of what you are going to use the scanned image for. Depending on what you are going to do with it, the resolution and dpi(dots per inch) on the scanner may need to be adjusted.

2. Descreen
Descreening has a blurring effect and is important as it is the filter to remove a moiré effect. My scanner does not automatically descreen, but it does have a selection button where you can choose to use it or not. The Descreen filters have selectable parameters to match the screen frequency of the original image halftone. Do NOT use the Descreen filter when scanning real photographs. Descreen is used only for images in printed matter, and not for real photo images. Also it is NOT used for scanning regular printed TEXT.(http://www.scantips.com/basics6b.html)

3. Resolutions
300 dpi is for commercial printing of books, glossy magazines and brochures.
150-200 dpi would be for laser printers (home/office printers).
72-96 is for e-mail attachments, the web, PowerPoint and multimedia.

# Scan at 72 dpi

72 dpi

# Scan at 100-150 dpi

125 dpi

# Scan at 300-365 dpi

160 dpi

Remember, the larger the dpi, the better the quality of the image!!!