now that I'm at home instead of the office, & a litle less stingywith my typing time... I figured this might be for a sign project, rather then a website...
And it could be for a proof, where you want to sumperimpose an image on some clients truck for example... maybe later the art will be vectorized, and cut... or digitally printed and cut.
or maybe this image... and the background that you need to bring into that space where the dreaded "white box" exists... will be worked together into the final piece...
In vector programs, I often cut a hole in the background, so it is actually in front of the image.
In Photoshop, I will often just import the "background" from my vector file, & my "image" can remain in front, with no white box.
Often the image can be "masked" easily in photoshop, using the "export transparent wizard" found under the help menu. This wizard quickly applies a rather crude vector based mask, & exports the file, with mask, in an .eps format, ready to place over a pic of my clients truck for example... or over some additional design elements I am working up in Illustrator. The "mask" contour is often too crude for a final production file, so it may end up consolidated in photoshop... or I may end up creating my own vector based mask from scratch.