Adding validation on upload a image in MVC 4.0

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MVC4

Hi,

I need to add following validations on upload image control(@Html.TextBoxFor(model => model.image, new { type = "file", accept = "image/*" })):

*image type,
*image size

But I do not want to add require field validator on this control.
I want that when a user upload a image then it should be validate for size and type and when user not upload image then it should not be validate and other records could save.

Please suggest.

Thank you,

Regards,
Ashish