What are some guidelines on using color vs. grayscale camera?
A color camera is useful when a grayscale camera is not capable of creating a significantly detectable contrast between two features. However, as a general rule of thumb, an image feature must be at least three pixels wide to be reliably imaged when a color camera is used, where as 2 pixels might yield the same results when a grayscale camera is used. Click Color versus Grayscale document to read more about this topic.