Save the path to an image in the database using Asp.net MVC 5

Question

I want to select an image and save in the database the image path, because in the sql database the "Image" column is with the type varchar. Could you help me with some examples? I thank you in advance.

View to Insert:

@Html.AntiForgeryToken()

<div class="form-horizontal">
    <h4>Adicionar Sistema</h4>
    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    <div class="form-group">
        @Html.LabelFor(model => model.Descricao, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.Descricao, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.Descricao, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.DataInativo, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.DataInativo, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.DataInativo, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.BoletoConfigId, "BoletoConfigId", htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.DropDownListFor(model => model.BoletoConfigId, TempData["BoletoConfigId"] as IEnumerable<SelectListItem>, "Selecione", htmlAttributes: new { @class = "form-control" })
            @Html.ValidationMessageFor(model => model.BoletoConfigId, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.UrlAcesso, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.UrlAcesso, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.UrlAcesso, "", new { @class = "text-danger" })
        </div>
    </div>

   <div class="form-group">
        @Html.LabelFor(model => model.Imagem, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            <input type="file" id="imagem" name="imagem"/>
            @*@Html.EditorFor(model => model.Imagem, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.Imagem, "", new { @class = "text-danger" })*@
        </div>
    </div>

    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" value="Adicionar" class="btn btn-primary" />
        </div>
    </div>
</div>

Controller:

public ActionResult Inserir()
{
   ViewBag.BoletoConfigId = new 
   SelectList(RepositorioBase<BancoBoletoConfiguracao>.GetAll(), 
   "BoletoConfigId", "Descricao");
   return View();
}

[HttpPost]
public ActionResult Inserir(Sistema sistema)
{   
   RepositorioBase<Sistema>.Add(sistema);
   return RedirectToAction("Listar");
}