What photoshop technique will get this job done?

[trutechnologyrepair]

Although i know it may get very much so in dept , im looking to cover some of the basic techniques that may be used to acquire the color change effect in this photo. i like the idea of changing some of my images to blend with the background .

 

[Tom Mann]

You asked an extremely general question. Tens, if not hundreds of thousands of articles, video tutorials, forum posts, etc. have already been written on the subject of using Photoshop to modify the colors in an image. Most of these are available on the web. Start with one or both of these searches:
http://bfy.tw/9wlh
http://bfy.tw/9wm2

If they don't answer whatever specific question(s) you have, just let us know and we'll be glad to try to help out.

Tom M