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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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

Research direction
Investigate why the monkey patched Blob is not being used by face api.js internally. Look at the source of `fetchImage` to see how it creates Blob objects. Consider using a polyfill or checking if the library's internal fetch uses a different environment.
Tech stack
javascriptnodejstensorflow
Domain
aibackend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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Active
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Clear
Prerequisites
Node.jsJavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65