|
Key |
Restriction |
|---|---|
|
Type |
If present, shall be XObject. |
|
Subtype |
Shall be Image. |
|
Width |
If a Matte entry (see Ta b l e 146 ) is present, shall be the same as the Width value of the parent image; otherwise independent of it. Both images shall be mapped to the unit square in user space (as are all images), regardless of whether the samples coincide individually. |
|
Height |
Same considerations as for Width. |
|
ColorSpace |
Required; shall be DeviceGray. |
|
BitsPerComponent |
Required. |
|
Intent |
Ignored. |
|
ImageMask |
Shall be false or absent. |
|
Mask |
Shall be absent. |
|
SMask |
Shall be absent. |
|
Decode |
Default value: [ 0 1 ]. |
|
Interpolate |
Optional. |
|
Alternates |
Ignored. |
|
Name |
Ignored. |
|
StructParent |
Ignored. |
|
ID |
Ignored. |
|
OPI |
Ignored. |