1. A system, comprising: a sensor configuration component that when executed causes at least one processor to define a gray region for an image sensor through: accessing image data, identifying a red/green ratio and a blue/green ratio for a point in the image data, identifying white points in the image data, and white balancing the point in the image data using the white points to produce white-balanced data, wherein said white balancing is performed through application of one or more white-balancing gains to at least one of the red/green ratio or the blue/green ratio associated with the point; and a camera component that when executed causes the at least one processor to identify one or more gray points in the image data based on the white-balanced data.