thresholdWithMask

Image processingfunctionOpenCV 5.0.0

import { thresholdWithMask } from '@banou/opencv-wasm'

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

ARGUMENTSsrc, dst, mask, thresh

FUNCTIONthresholdWithMask

RETURN TYPEnumber

Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Same as #threshold, but with an optional mask

Note: If the mask is empty, #thresholdWithMask is equivalent to #threshold. If the mask is not empty, dst must be of the same size and type as src, so that outliers pixels are left as-is

See: threshold, adaptiveThreshold, findContours, compare, min, max

thresholdWithMask(src: Mat, dst: Mat, mask: Mat, thresh: number, maxval: number, type_: number): number;

src: input array (multiple-channel, 8-bit or 32-bit floating point).
dst: Input/output value, modified by the native operation. output array of the same size and type and the same number of channels as src.
mask: optional mask (same size as src, 8-bit).
thresh: threshold value.
maxval: maximum value to use with the #THRESH_BINARY and #THRESH_BINARY_INV thresholding types.
type_: thresholding type (see #ThresholdTypes).

Returns

the computed threshold value if Otsu's or Triangle methods used.

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.