justadudewhohacks/face-api.js

"Blob is not defined" fetching local images

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#194 opened on Jan 15, 2019

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 (10 comments) (0 reactions) (0 assignees)TypeScript (15,839 stars) (3,649 forks)batch import
enhancementgood first issuehelp wanted

Description

Hi, i testing face-api.js and trying loading a local image for make face similarity and is throw me "Blob is not defined" in my nodeJS application, here the function where i try computing descriptors:

face.env.monkeyPatch({ fetch, Blob });

const threshold = 0.6;
var descriptors = { desc1: null, desc2: null };

function computarDescriptor(aDesc, aUri) {
  // ~statics/pics/001_tmp.jpg
  face.fetchImage(aUri).then(function(result) {
    console.log('fecthImage: ' + result);
    descriptors['desc' + aDesc] = face.computeFaceDescriptor(result);
  }).catch(err => {
    console.log(err);
  })
}

node-fetch and blob is installed and monkeyPatched and referenceErros is still there.

Thanks

Contributor guide

Tech stack
javascripttypescriptnodejstensorflow
Domain
backendmachine learning
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Node.jsJavaScriptface api.js basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Review the issue comments for any workarounds. Examine the face api.js codebase, particularly the environment setup in src/env or similar. Investigate if the Blob object is expected to be polyfilled in Node.js. Consider adding a condition to check for Blob and provide a fallback if missing.