We used colour images of whitefly as samples,studied and discussed isolated point and unrelated small areas after performing gray level process and binary process.

• 本文以白粉虱的彩色图像为样本，对其进行了灰度及二值化处理。对处理过程中产生的孤立点和无关小区域的处理和删除进行了研究和探讨。