A color vision system was used to obtain images of single stationary e
ggs. Images of cracked eggs and grade-A eggs were used to generate tra
ining, testing, and validating data for an artificial neural network.
Three histograms of the primary colors of red, green, and blue were co
nstructed from each color image. A composite histogram was constructed
by concatenating each primary histogram and, optionally, reducing the
number of cells. Various artificial neural networks with different pa
rameters and structures were trained using the composite histograms. T
he artificial neural networks were tested and validated on independent
data sets. The artificial neural networks trained with histograms of
color images produced graded samples that exceeded USDA requirements a
nd achieved higher accuracy than neural networks trained on data from
gray scale images.