2.2.5.24 wscn:ColorWKVType
The wscn:ColorWKVType type defines an enumerated list of built-in type xs:NMTOKEN (as specified in [XMLSCHEMA1] and [XMLSCHEMA2]) that represent the predefined (or well-known) values of color processing mode supported by the scan device. Each keyword describes the data type/encoding, bit depth, and bits per channel. The table below illustrates how the keywords map to the color processing properties.
|
ColorWKVType Keyword |
Pixel Bit Depth |
Bits Per Channel |
|---|---|---|
|
BlackandWhite1 |
1 |
1 |
|
Grayscale4 |
4 |
{4} |
|
Grayscale8 |
8 |
{8} |
|
Grayscale16 |
16 |
{16} |
|
RGB24 |
24 |
{8,8,8} |
|
RGB48 |
48 |
{16,16,16} |
|
RGBa32 |
32 |
{8,8,8,8} |
|
RGBa64 |
64 |
{16,16,16,16} |
-
<xs:simpleType name="ColorWKVType"> <xs:restriction base="xs:NMTOKEN"> <xs:enumeration value="BlackAndWhite1"/> <xs:enumeration value="Grayscale4"/> <xs:enumeration value="Grayscale8"/> <xs:enumeration value="Grayscale16"/> <xs:enumeration value="RGB24"/> <xs:enumeration value="RGB48"/> <xs:enumeration value="RGBa32"/> <xs:enumeration value="RGBa64"/> </xs:restriction> </xs:simpleType>
|
Value |
Description |
|---|---|
|
BlackAndWhite1 |
Black and White images, 1 bit per pixel and a single channel |
|
Grayscale4 |
Grayscale images, 4 bits per pixel and a single channel |
|
Grayscale8 |
Grayscale images, 8 bits per pixel and a single channel |
|
Grayscale16 |
Grayscale images, 16 bits per pixel and a single channel |
|
RGB24 |
RBG encoded color images, 24 bits per pixel divided between 3 channels of 8 bits each |
|
RGB48 |
RBG encoded color images, 48 bits per pixel divided between 3 channels of 16 bits each |
|
RGBa32 |
RBG encoded color images with an alpha channel, 32 bits per pixel divided between 4 channels of 8 bits each |
|
RGBa64 |
RBG encoded color images with an alpha channel, 64 bits per pixel divided between 4 channels of 16 bits each |