How do you create the effect of having only one color appear in a photo and have the rest be black and white?

Here is the Photoshop procedure, but you can do the same thing in GIMP http://gimp.org As is true of many procedures in Photoshop, there are several ways of doing selective color. This is a quick and easy method. First open your photo in your edit program. Then go to Layer - Duplicate Layer Click OK Then go to Image - Adjustments - Hue / Saturation Drag the Saturation slider all the way to the left to make the photo black and white. Click OK Then get the ERASER tool from the tool box on the left side of the screen. It is usually the next tool under the clone stamp tool. Just hover your mouse over the tool, and it will say Eraser. When you have selected the Eraser, go up to the Brush options box at the top of the screen, and click on the downfacing arrow. Set the Hardness of the brush to 100% so you will have accurate control of selection. You may also need to raise or lower the brush size to suit. Erase away any black and white from where you want the color to be revealed. When done go to Layer - Flatten Image Then just do a Save As to wherever you want to save the photo. hope this helps you steve