how can i catch errors?

[brandonmp]

I notice sometimes the library emits an error message, like, premature end of JPEG file. I think the hash turns out OK, and the image looks fine upon visual inspection, but I'd still like to log these errors.

Is there a way to intercept them from the library and handle them? it looks like they just go to stdout, but I don't route my error logging etc. thru stdout, so I'm hoping to avoid having to scrape errors from the console.