Hello,
HikaShop have the system of "custom fields" which allow you to create "item custom field" to extends what information the customer can provide when adding a product into the cart.
In the available fields, there is the "ajax image".
But that custom field type do not provide feature to crop the image (or modify it dynamically).
Nevertheless, thanks to custom development it is still possible to implement such kind of feature and provide new kind of custom fields for your store.
Regards,
PS : Please note that "item" and "order" custom fields require HikaShop Business.
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.