The term for a picture that is black and white with one color added is called a "spot color" image.
no it is impossible.
grayscale
Color Splash?
Yes, but you won't get colors such as blue or yellow. You will receive a color image of black and white. Your image never had color. Take a new picture in color and you will not have black and white. If you're good with photoshop (or something similar), you can use that to add color that wasn't there before. But that is difficult.
grayscale
Black picture frames will provide a great contrast to the white walls and draw attention to the picture.
To make a picture black using editing software, you can adjust the saturation or color levels to remove all color from the image, leaving it in shades of black and white. You can also use the "grayscale" or "black and white" filter to achieve this effect.
The most important part of choosing a picture frame is to make sure the frame is not muted by your wall. Never pick a frame that is the same color as the wall behind it. Pick a picture frame that complements the shading in the black and white photograph.
well you mix the two colors together and you get...
Good Night & Good Luck
In Adobe Photoshop. You must make mask.