Npm ngx dropzone从列表中加载图像

我正在使用ngx dropzone和angular 8。我使用ngx dropzone进行上传，它可以正常工作，但这次我想将特定列表中的图像加载到dropzone。这是我的密码

 <ngx-dropzone (change)="onSelect($event)">
     <ngx-dropzone-label>Select/Drop images here!</ngx-dropzone-label>
           <ngx-dropzone-image-preview ngProjectAs="ngx-dropzone-preview" [removable]="true" (removed)="onRemove(f)" *ngFor="let f of files" [file]="f">
           <ngx-dropzone-label></ngx-dropzone-label>
           </ngx-dropzone-image-preview>
          </ngx-dropzone>

下面是my api代码，它返回带有base64字符串的图像列表

getImages() {
    this.alertService.clear();
    this.imageModel.SaloonId = this.saloonId;
    this.imageModel.ServiceId = this.serviceId;
    this.apiService.Create('Saloon/getServiceImages', this.imageModel).subscribe(
      resp => {
        if (resp.length > 0) {
         // Here to load Images to dropzone.
        }
        console.log(this.files);
        },
      error => {
       this.alertService.error('Error getting images. Please contact admin.');
       },
      () => { console.log('complete'); }
    );
  }

此图像返回以下列表

getImages() {
    this.alertService.clear();
    this.imageModel.SaloonId = this.saloonId;
    this.imageModel.ServiceId = this.serviceId;
    this.apiService.Create('Saloon/getServiceImages', this.imageModel).subscribe(
      resp => {
        if (resp.length > 0) {
         // Here to load Images to dropzone.
        }
        console.log(this.files);
        },
      error => {
       this.alertService.error('Error getting images. Please contact admin.');
       },
      () => { console.log('complete'); }
    );
  }