Selecting a Photograph and Editing it

Today I looked through all of my photographs that I have of the ear and I selected the one that got all of the ear and could get a could picture if I wanted to add something of the ear anatomy. Later I used Picassa to focus the color in one circle around the ear. I moved my picture to photoshop so that I could put a resolution of 200 and made the picture 5 by 7 inches. I saved my picture on the home directory so that I could look at it later.