all you need to do is get the data and pass it to your image processor class. *file mtvCrop,js is part MultiTV and automatic load in back-end. not use in front-end. prepare multitv and config
if you have already installed and configured multitv and the necessary configuration files, then proceed to creating a snippet create tv 'goods_images', type: multitv description of the structure (can be skipped)
in back-end on page edit image (in TV goods_images). after that image`s info saved in site_tmplvar_contentvalues like this: