The Procter Gamble Company

John Michael Dunavent

David Warren Loebker

Ashley Lynn Kuntz

Matthew Lloyd Barker

Marlene Otero

Stephen Francis McClanahan

Robert Woodrow Gerlach

Michael Eugene Rubush

Roger David Gibb

A method for determining the effective cleaning of bath tissue. The method can include providing at least one pair of worn underwear; optionally, cutting the pair of worn underwear and laying it flat with the inside surface exposed; scanning an image of the exposed, inside surface of the underwear, the image including at least a portion of the underwear likely to have fecal staining; capturing with the image at least one color standard; selecting image points in areas of the scanned image visually appearing clean and areas of the scanned image visually appearing stained with fecal staining; optionally, converting the Red, Green, Blue (RGB) color to L*a*b* color values; utilizing analysis software to characterize other areas of the scanned image corresponding to image points having similar color to the image points selected as clean or stained with fecal staining; classifying the entire image, pixel by pixel, into defined portions of the underwear that are clean or stained with fecal staining; and, calculating areas corresponding to portions of the underwear stained with fecal staining.

Method for determining the cleaning effectiveness of toilet paper

A system and method employing image analysis may provide an objective measure of the state of gingival tissue health. A region of analysis on an image of gingival tissue may be divided into pixels. Each pixel may have an associated color made up of component R, G and B values. A user may obtain an objective measurement of oral cavity soft tissue health by determining an objective measurement of the component color values of a gingival tissue image region and performing statistical analysis on the color values.

Methods and products for analyzing gingival tissues

Growing community of inventors

Mason, OH, United States of America

John Michael Dunavent