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opencv-wasm

img_hash_marrHildrethHash

img_hashfunctionOpenCV 5.0.0
import { img_hash_marrHildrethHash } from '@banou/opencv-wasm'

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

ARGUMENTSinputArr, outputArr, alpha, scale
FUNCTIONimg_hash_marrHildrethHash
RETURN TYPEvoid
Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Computes average hash value of the input image

img_hash_marrHildrethHash(inputArr: Mat, outputArr: Mat, alpha: number, scale: number): void;
3 available overloads
img_hash_marrHildrethHash(inputArr: Mat, outputArr: Mat): void;
img_hash_marrHildrethHash(inputArr: Mat, outputArr: Mat, alpha: number): void;
img_hash_marrHildrethHash(inputArr: Mat, outputArr: Mat, alpha: number, scale: number): void;
inputArr

input image want to compute hash value, type should be CV_8UC4, CV_8UC3, CV_8UC1.

outputArr

Output destination, filled by the native operation. Hash value of input, it will contain 16 hex decimal number, return type is CV_8U

alpha

int scale factor for marr wavelet (default=2).

scale

int level of scale factor (default = 1)

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.