Ionic v3, Array, Angular and Variables

I need your help. In my app I want to display an array with *ngFor. My array is composed by a name field and a field that contain a variable with the base64 of an image. That variable is generated with Camanjs that makes async result.

    import { Component, NgZone } from '@angular/core';
    import { NavController, NavParams, AlertController } from 'ionic-angular';
    import { HomePage } from '../home/home';
    
    declare var Caman: any;
    @Component({
      selector: 'page-filtri',
      templateUrl: 'filtri.html'
    })
    export class FiltriPage {
    
    filtri = [];
    
    vintage: any;
    lomo: any;
    
      constructor(public navCtrl: NavController, public navParams: NavParams, alertCtrl: AlertController, public zone: NgZone) {
        
        this.filtri = [
          {
            nome: "Vintage",
            base: this.vintage,
          },
          {
            nome: "Lomo",
            base: this.lomo,
          }
         
        ];
    
      }
     
    ionViewDidLoad(){
    
      this.vintageFilter();
      this.lomoFilter();
    
    }
    
    vintageFilter(){
    
      let scope = this;
    
           Caman("#image", function () {
             this.revert();
             this.vintage();
             this.render(function () {
             scope.vintage = this.toBase64();
             });
           });
    }
    
    lomoFilter(){
    
      let scope = this;
    
           Caman("#image", function () {
             this.revert();
             this.lomo();
             this.render(function () {
             scope.lomo = this.toBase64();
             });
           });
    }
    }

… I delete some irrelevant stuff from my code.
I can display the “nome” from my array but not “base”.
I’m pretty sure that is something about promises but how can I solve this?

There’s no promises in your code so that’s not an issue.

Changing this.lomo and this.vintage won’t change the values in your array, so you’ll have to “manually” update those values.

Also, I’m not sure why this is in the ngCordova category.