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opencv-wasm

ImwriteWEBPLosslessMode

Image codecsclassOpenCV 5.0.0
import { ImwriteWEBPLosslessMode } from '@banou/opencv-wasm'

Use after await initOpenCV(). See the initialization and named imports guide.

ARGUMENTSConstructor or factory
CLASSImwriteWEBPLosslessMode
RETURN TYPEOwned native handle
Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Native object: release it with using or delete(). Factories can return null; check before calling methods.

Imwrite WEBP specific values for IMWRITE_WEBP_LOSSLESS_MODE parameter key.

Upstream declaration ↗

Constructors and members

static IMWRITE_WEBP_LOSSLESS_OFF

Lossy compression mode. Uses IMWRITE_WEBP_QUALITY to control compression. (Default)

IMWRITE_WEBP_LOSSLESS_OFF: ImwriteWEBPLosslessModeValue<0>,

Upstream declaration ↗

static IMWRITE_WEBP_LOSSLESS_ON

Standard lossless compression. May modify or discard RGB values of fully transparent pixels to improve compression ratio.

IMWRITE_WEBP_LOSSLESS_ON: ImwriteWEBPLosslessModeValue<1>,

Upstream declaration ↗

static IMWRITE_WEBP_LOSSLESS_PRESERVE_COLOR

Exact lossless compression. Preserves all RGB data even for pixels with 0 alpha (equivalent to WebP's exact flag).

IMWRITE_WEBP_LOSSLESS_PRESERVE_COLOR: ImwriteWEBPLosslessModeValue<2>

Upstream declaration ↗

These signatures describe this package. Upstream documentation can mention optional backends that are absent from this build. Check runtime compatibility before choosing a backend or file format.