how to display image to template from imagefield in django

My template cannot display the image coming from my model.

src attribute comes with proper field but it does not display the proper image

template:

       <div class="grid-product">
  
    {% for p in prod %}
    
    
    <div class="  product-grid">
        <div class="content_box"><a href="single.html">
        <div class="left-grid-view grid-view-left">
             <img  class="img-responsive watch-right" alt="not found" src="{{p.photo}}"/>
                <div class="mask">
                    <div class="info">Quick View</div>
                </div>
              </a>
        </div>
            <h4><a href="#"></a></h4>
             <p>It is a long established fact that a reader{{ p.p_name }}</p>
             Rs. 499
        </div>
   </div>
    {% endfor %} 
         <div id="show"></div>
    <div class="clearfix"> </div>
</div>

model:

class product(models.Model):
    p_id=models.AutoField(primary_key=True)
    ps_id=models.ForeignKey(alphasubcat,on_delete=models.CASCADE)
    p_name=models.CharField(max_length=100,null=True,blank=True)
    photo = models.ImageField(upload_to='productimage',blank=True)
    price=models.IntegerField()
    def __str__(self):
        return self.p_name

view:

def produc(request):
    param=dict()
    cat=categories.objects.all()
    sub=subcategories.objects.all()
    temp=request.GET['p']
    prod=product.objects.filter(ps_id=alphasubcat.objects.get(as_name=temp))
    param['prod']=prod
    param['cat']=cat
    param['sub']=sub
    return render(request,"product.html",param)