PdfImageMaskKind Enum

Definition

Assembly Broadside.dll

How an image is masked: which of its dictionary's masking entries applies.

public enum PdfImageMaskKind

Remarks

ISO 32000-2 §8.9.6 and §11.6.4.3. When several are present the precedence is: ImageMask, then SMaskInData (JPEG 2000), then SMask, then Mask (a stream, then an array). SMask overrides Mask (Table 87); either soft mask overrides the graphics state's soft mask for this image only.

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Fields (6)

ColorKeyColour key masking: Mask is an array of ranges of raw sample values that are not painted (ColorKey).

ExplicitAn explicit mask: Mask is an image mask, possibly at another resolution (Mask).

NoneNo mask: every sample is painted.

SoftA soft-mask image: SMask gives each sample's opacity (Mask, Matte).

SoftInDataOpacity in the JPEG 2000 data itself (SMaskInData 1 or 2): Alpha.

StencilThe image is itself a stencil mask (ImageMask true): it paints the current fill colour where its samples say.