Hi,
Are you saying that the image is on a different website than the cart/checkout ?
In that case, I don't see a solution.
However, if what you mean is that they are on the same website but on different pages, and you don't want to change the page when the product is added to the cart, then there are solutions.
One solution is to add a "url" parameter to the add to cart link:
https://mywebsite.com/index.php?option=com_hikashop&ctrl=product&task=updatecart&cid=XXX&qty=1&add=1&url=YYY
Where YYY is the urlencoded URL of the page where you have the image.
To Urlencode a URL, you can use that website for example:
www.urlencoder.org/
It's important that the YYY URL is urlencoded or the add to cart URL won't be valid.
You can read more about urlencoding here:
stackoverflow.com/questions/4667942/why-should-i-use-urlencode