Patent ID: 7885444

Claim:
A method, comprising: capturing an image of at least a portion of a testing device including at least one probe zone, wherein the captured image comprises a test line occurring in the at least one probe zone in response to a tested solution contacting the testing device; scanning along a scan line of the image with a scanning system comprising two or more color channels to determine a plurality of color responses from the captured image, wherein the plurality of color responses comprise first image data captured by a first of the two or more color channels using a first frequency of light, and second image data captured by a second of the two or more color channels using a second frequency of light, wherein the first frequency is different than the second frequency, and wherein the scan line passes through the at least one probe zone; and determining whether a component of the tested solution is present for the at least one probe zone based, at least in part, on an average of two or more of the plurality of color responses, wherein the two or more of the plurality of color responses are determined from a single scan along the scan line.