It is a trend in the world now that uses state maintain method to maintain the jet plane's
engine by taking advantage of the advanced UV sensors and UV CCD camera. Enrichment
phenomenon is one of the most popular plane engine failures, and it has large damage to the
plane engines. In this paper, a new technology will be introduced to determine plane engine's
enrichment phenomenon by using UV image processing method. The new technology acquires
the enrichment plane engine's UV images and then extracts the features by analyzing those UV
image's histogram and other histogram's characteristics just like the mean value, the maximum
value, the minimum value and the standard deviation of grey scale.