Changing color of background

Question

Hi, I am using Adobe Photoshop CS5 (64 bit) and I would like to know how to change the background color of my .tiff file.  It is a black and white picture, and I just would like to change the white portion to a different color, such as green, yellow, red etc.  I used to use a hothey to change it on older versions, but it does not seem to work on the new one.  Does anyone know how to do this?  Thank you.

Answer 1

You can try this:
1.  Open a grayscale image.
2.  Make the Actions panel visible by choosing Window - Actions from the menus.
3.  Click the little fly-out menu icon in the upper right corner and choose New Set...  Call it Color Changing Actions.
4.  Click the fly-out icon and choose New Action...  Call it Greenify.  It will go into Record mode automatically.
5.  Choose Image - Mode - RGB Color.
6.  Choose Image - Adjustments - Curves...
7.  In the Curves dialog, click the Channel: selector, choose Red, and drag the white point down to the center grid mark.
8.  Do the same thing as step 7 with the Blue channel.
9.  Press [ OK ].
10.  Click the little square at the bottom of the Actions panel to stop the recording.
11.  Double click the empty space to the right of the action name Greenify.
12.  In the Action Options dialog, change Function Key: to F3 and click the Shift checkbox, then press [ OK ].
Voila, your Shift-F3 key now makes grayscale images "greenscale".
-Noel