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@udarrr/template-matcher
@udarrr/template-matcher/dist/index.js

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Readme

OpenCV 4.1.1 Template Matching Image Finder

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Develop

It's plugin for nutjs project or standalone with some features like

incresed accuracy (x10)
incresed perfomance (~x2)
added some customOptions for arguments params?: OptionalSearchParameters in nutjs !not implemented in nutjs yet, but available in standalone
added standalone

Installation for nutjs

npm i @udarrr/template-matcher

and then just use it in your project once

import "@udarrr/template-matcher" or require("@udarrr/template-matcher")

Installation for standalone

npm i @udarrr/template-matcher

and connect finder to your project

import finder from "@udarrr/template-matcher";

//some examples
const matcheImages = finder.findMatch({haystack: pathToImage, needle: pathToTemplate});
const matcheWithScreen = finder.findMatch({needle: pathToTemplate});

const matchesImages = finder.findMatches({haystack: pathToImage, needle: pathToTemplate});
const matchesWithScreen = finder.findMatches({needle: pathToTemplate});

Options

//nutjs options 
{
    confidence?: number,
    searchMultipleScales?: boolean,
    customOptions?: {
                       methodType: MethodNameType; 
                       scaleSteps: Array<number>; 
                       roi: Region; 
                       debug: boolean
                    },
}

//standalone
{
    haystack?: string | Image,
    needle: string | Image,
    confidence?: number,
    searchMultipleScales?: boolean,
    customOptions?: {
                       methodType: MethodNameType; 
                       scaleSteps: Array<number>; 
                       roi: Region; 
                       debug: boolean
                    },
}

methodType: "TM_CCOEFF" | "TM_CCOEFF_NORMED" | "TM_CCORR" | "TM_CCORR_NORMED" | "TM_SQDIFF" | "TM_SQDIFF_NORMED" by default "TM_CCOEFF_NORMED"
scaleSteps: [0.9]; by default [1, 0.9, 0.8, 0.7, 0.6, 0.5]
debug: true | false by default false
for "TM_SQDIFF" | "TM_SQDIFF_NORMED" confidence by default 0.98
for "TM_CCOEFF" | "TM_CCOEFF_NORMED" | "TM_CCORR" | "TM_CCORR_NORMED" by default 0.8