Well.....if it was a Photoshop .PSD photo, you might do that.
But with a .jpg:
.......what you see, is what you get.
...
..
.
I received a jpg in my e-mail but it has been altered. I would really like to remove some of the alterations to uncover the true original pic. Can one of you brilliant folks help???

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic