Autotek autocad raster design 2010 用户手册
spatial resolution Image density expressed in pixels per unit, typically used
with scanned images.
with scanned images.
speckle An unwanted random spot in an image. Speckles or stray pixels can
often appear in an image when you scan drawings or blueprints that are dirty
or wrinkled. You can remove speckles from your bitonal images by using the
Despeckle filter.
often appear in an image when you scan drawings or blueprints that are dirty
or wrinkled. You can remove speckles from your bitonal images by using the
Despeckle filter.
stripped Encoding method for TIFF files. Breaks up image data into strips for
quicker processing. See also data organization.
quicker processing. See also data organization.
supported image types ProdNameShort supports bitonal, grayscale, and up
to 24-bit color images, along with digital elevation models (DEM), multispectral
imagery, and generic integer data in 16- and 32-bit format.
to 24-bit color images, along with digital elevation models (DEM), multispectral
imagery, and generic integer data in 16- and 32-bit format.
supported image types ProdNameShort supports bitonal, grayscale, and up
to 24-bit color images, and generic integer data in 16- and 32-bit format.
to 24-bit color images, and generic integer data in 16- and 32-bit format.
TARGA A raster image format created by Truevision Inc. Usually 16-bit or
24-bit true color. Can be 8-bit grayscale or simple run-length coded.
24-bit true color. Can be 8-bit grayscale or simple run-length coded.
Threshold A ProdNameShort operation for converting color or grayscale
images to bitonal format. Within the range of grayscale values in an image,
the threshold marks the upper limit of black pixel values and the lower limit
of white pixel values. ProdNameShort can set the threshold value
automatically, but you can manually adjust it before conversion, using the
Threshold tab of the Histogram dialog box.
images to bitonal format. Within the range of grayscale values in an image,
the threshold marks the upper limit of black pixel values and the lower limit
of white pixel values. ProdNameShort can set the threshold value
automatically, but you can manually adjust it before conversion, using the
Threshold tab of the Histogram dialog box.
thumbnail A miniature representation or preview of an image. Thumbnails
are used in the ProdNameShort Insert Image dialog box, the Histogram dialog
box, and the AutoCAD Image Adjust dialog box.
are used in the ProdNameShort Insert Image dialog box, the Histogram dialog
box, and the AutoCAD Image Adjust dialog box.
TIFF Acronym for the tagged image file format.
tiled Encoding method for TIFF files. Breaks the image data into rectangular,
tiled regions for quicker processing. See also data organization, quad sheet.
tiled regions for quicker processing. See also data organization, quad sheet.
toggle To switch between two options of an electronic device, usually by
pressing a single button. Example: The ProdNameShort Toggle command
changes the visibility of the image frame.
pressing a single button. Example: The ProdNameShort Toggle command
changes the visibility of the image frame.
transparency color A selected color that is transparent in a grayscale or color
image. If transparency is turned on for the image, all pixels of the transparency
color become transparent. Any time you use a Rub command, the color of the
rubbed area is changed to the transparency color.
image. If transparency is turned on for the image, all pixels of the transparency
color become transparent. Any time you use a Rub command, the color of the
rubbed area is changed to the transparency color.
true color (24-bit) image An image that can contain up to 16.7 million colors.
This image type is composed from three 8-bit data bands: red, green, and blue.
This image type is composed from three 8-bit data bands: red, green, and blue.
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