//In HTML
<div>
	<img :src="this.dogUrl"   />
</div>               
<div>
	<input type="file" accept="image/*" capture="camera" @change="cattura" ref="nome_foto"  >
 </div>

//In Methods
		cattura(event){
            this.selectedFile = event.target.files[0];          
            const fd = new FormData();         
            this.immagine = URL.createObjectURL(this.selectedFile)
            fd.append('image', this.selectedFile, this.selectedFile.name);                          
            this.dogUrl = this.immagine 
        }