DeviceCMYK
Overview
DeviceCMYK is a class in Aspose.Pdf FOSS for Java.
Inherits from: ColorSpaceBase.
The DeviceCMYK color space (ISO 32000-1:2008, §8.6.4.4).
Properties
| Name | Type | Access | Description |
|---|---|---|---|
name | String | Read | |
numberOfComponents | int | Read | |
INSTANCE | DeviceCMYK | Read | Singleton instance. |
Methods
| Signature | Description |
|---|---|
getName() → String | |
getNumberOfComponents() → int | |
toRGBInt(c: double, m: double, y: double, k: double) → int | Converts CMYK components [0..1] to a packed ARGB int using the naive |
| subtractive formula |
R = (1 - min(1, C + K)) * 255 G = (1 - min(1, M + K)) * 255 B = (1 - min(1, Y + K)) * 255
This is the “no ICC profile” mapping: it preserves the algebraic
primaries — pure C maps to {@code (0,255,255)}, pure K to
{@code (0,0,0)}, registration black {@code (1,1,1,1)} to black, and
white {@code (0,0,0,0)} to white — which is what the public API
contract assumes (see {@code ColorSpaceTest.testDeviceCMYKToInt} and
{@code AsposeColorActionPortedTest.createDeviceCMYK}). |
| resolve(csObj: COSBase, resources: Resources, parser: PDFParser) → ColorSpaceBase | Resolves a color space from a PDF object. |