Patent ID: 8068666

Claim:
A method for identifying color intensities of red lines on a white test strip, comprising the steps of (A) attaching said white test strip to a card that is larger and darker than said white test strip, (B) scanning said card with said attached white test strip, (C) creating a digital image of said card, wherein each pixel in said digital image has a Red value, a Green value, and a Blue value, (D) using said digital image to calculate a color intensity for each red line on said white test strip, wherein said step (D) is performed using a method comprising (a) identifying a first red line, and identifying a first rectangle corresponding to said first red line, wherein said first rectangle (i) is approximately or exactly centered on said test strip in a horizontal direction, (ii) is smaller than said test strip in the horizontal direction, (iii) extends above and below said first red line in a vertical direction, (b) identifying a second red line, and identifying a second rectangle corresponding to said second red line, wherein said second rectangle (i) is approximately or exactly centered on said test strip in the horizontal direction, (ii) is smaller than said test strip in the horizontal direction, (iii) extends above and below said second red line in the vertical direction, (c) optionally, repeating said step (b) for each additional red line to identify an additional rectangle corresponding to said additional red line, (d) performing a color inversion calculation, and (e) after performing said steps (a), (b), and (c), and (d), calculating a sum of the Green values of all the pixels within each rectangle, to produce a first sum of Green values corresponding to said first rectangle, a second sum of Green values corresponding to said second rectangle, and, optionally, an additional sum of Green values corresponding to each additional rectangle, wherein said first sum of Green values corresponding to said first rectangle is said color intensity of said first red line, wherein said second sum of Green values corresponding to said second rectangle is said color intensity of said second red line, and wherein said additional sum of Green values corresponding to each said additional rectangle is said color intensity of said additional red line to which said additional rectangle corresponds.