CB

With HTML5 it's now possible to support client side resizing of image files. This should just be a part of the file input validation code and handled in cbValidate it self. Current jQuery File Upload can do this, but it's with old canvas usage and still requires and upload so not much point to it. See the below example using HTML5 functionality (similar to how the current filesize/extension validation is already working). This should simply have new validation attributes for max height and max width.

http://dejanstojanovic.net/jquery-javascript/2016/january/resize-image-on-the-client-side-with-jquery/

Note that this changes the image to a byte array instead of an actual file so the upload code needs to handle byte arrays.

https://www.joomlapolis.com/forum/153-professional-member-support/234815-client-side-image-resizing-and-compression#286162