Add pipe to formControl angular2 Reagent Forms

My question is that, how can I add a pipe like that to a reactive form, for non-reactive cases, I have seen that it can be done in the following way.

<input [ngModel]="item.value | useMyPipeToFormatThatValue" 
      (ngModelChange)="item.value=$event" name="inputField" type="text" />

Now I am using the angular form reagents2, and that doubt arose, this is my html code.

<form [formGroup]='fb'>
    <input type="text" [formControl]='searchTerm'>
    <button (click)="formClick()">FormClick</button>
    <input type="text" [formControl]="masterValue">
</form>

<ul>
    <li *ngFor="let user of users">
        {{user.name}}
    </li>
</ul>

<p>{{master | masterPipe}}</p>

my MasterPipe.ts

    export class MasterPipe implements PipeTransform{
    transform(master:string){
        const market=4;
        let oculto=master.slice(0,-market);
        let visible=master.slice(-market);
        let a:string=oculto.replace(/./g,'*')+visible;
        return a;
    }
}

I want to add that pipe to the input with the formControl = masterValue, something like this in the line below but in the same input.

<p>{{master | masterPipe}}</p>