AgfaPhoto AS 1300 User Manual page 26

File Format - Choose which file format you want the scanned image to be. The
following file formats are available from the drop-down menu:
•
JPG (JPEG) - (Joint Photographic Experts Group) JPEG (pronounced
"jay-peg) is a format that is commonly used for color images displayed on
the Internet. JPEG reduces the file size of an image by discarding some
of the non-critical data of the image. JPEG retains all of the color
information of an image and offers varying degrees of compression.
•
TIF (Aldus Tiff) - (Tagged Image File Format) is a widely-used
bitmapped graphics file format developed by Aldus and Microsoft that
handles monochrome, gray scale, and 8/24-bit color.
•
PCX (Paintbrush) - PCX is a popular bitmapped graphics file format that
handles monochrome, and 2-, 4-, 8-, and 24-bit color. PCX uses Run
Length Encoding (RLE) to achieve compression ratios of approximately
1.1:1 to 1.5:1. RLE is best used with images that have large blocks of
solid colors.
•
BMP (Windows Bitmap) - (Bitmap file - also known as a "bump" file) is a
Windows and OS/2 bitmapped graphics file format. BMP is the Windows
native bitmap format. BMP files provide formats for 2, 16, 256 or 16
million colors (1-, 4-, 8-, and 24-bit color).
Auto Processings
Auto Crop - Alternatively you may check the Auto Crop option to have the
scanner program automatically identify the dimensions of the image you scanned
and crop around the edges. The crop shape will be a square or rectangle and it
will not trace the edges of oddly-shaped images. This command can be useful
when scanning smaller images such as photographs.
Auto Deskew - You'll find this option useful when you find the scanned image
slanted. Tick the box of this option and rescan the image; the DigiScan program
will automatically straighten the skewed image(s).
Descreen - applies filtering to images that contain moiré patterns (or
herringbone). A moiré pattern is created from scanning pictures in magazines, or
printed material that use color dithering. The descreen filter is not needed when
scanning original photographs or black and white images and text, but is
recommended when scanning any printed color graphics, such as a page from a
magazine, in order to remove the unsightly interference patterns which may occur.
Scanning Attributes
Size - enables you to alter the scan area. It is preferable to scan the exact area of
the document or image so the file size is the smallest possible and there are no
large blank areas on the page.
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