Evaluation of Copper Strip Corrosion Test Based on Color Features

The copper strip corrosion level is evaluated by color features according to the description or ASTM copper strip corrosion standards. It is difficult to make the decision because of the inhomogeneity of corrosion. A new copper strip corrosion level evaluation method based on color features is proposed to solve this problem. Firstly, to control the shooting condition; secondly, to convert the image from RGB color space to CIELAB color space and to extract the color features by K-means clustering; thirdly, to match the color features with the color feature database constructed by the ASTM copper strip corrosion standards to get the copper strip corrosion level. The results show that both this new method and the visual method have the similar consequence.