ColorEntry element
The required ColorEntry element describes a single color-processing mode that an input source on the scanner supports.
Usage
<wscn:ColorEntry>
text
</wscn:ColorEntry>
Attributes
There are no attributes.
Text value
Required. One of the following keywords:
| Term | Description |
|---|---|
| BlackAndWhite1 | Black and white images; 1 bit per pixel (bpp) and a single channel |
| Grayscale4 | Grayscale images; 4 bpp and a single channel |
| Grayscale8 | Grayscale images; 8 bpp and a single channel |
| Grayscale16 | Grayscale images; 16 bpp and a single channel |
| RGB24 | RGB-encoded color images; 24 bpp divided between three channels of 8 bits each |
| RGB48 | RGB-encoded color images; 48 bpp divided between three channels of 16 bits each |
| RGBa32 | RGB-encoded color images with an alpha channel; 32 bits bpp divided between four channels of 8 bits each |
| RGBa64 | RGB-encoded color images with an alpha channel; 64 bpp divided between four channels of 16 bits each |
Child elements
There are no child elements.
Parent elements
Remarks
Each value keyword describes the color data type and encoding, bit depth, and bits per channel. The following table shows how the value keywords map to the scanner's color processing properties.
| 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} |
You can both extend and subset the allowed values for this element.