[CC/JS] Check for Images Containing White Borders

Hi,

I’m writing a script, that places images (CMYK-JPGs) in frames. So far so good, but when an image has a white background at its top, right, bottom OR left border, then the image frame should get a border in InDesign (30% black).

Is there an easy way to check this?

I’d be very glad to get some ideas, starting points, code snippets whatever ...

Cheers

Tobias