| environ. | digital image processing technique Techniques employed in the calibration of image data, the correction or reduction of errors occurring during capture or transmission of the data and in various types of image enhancement-operations which increase the ability of the analyst to recognize features of interest | 数字图像处理技术 (校正影像资料所使用的技术，例如修正或降低资料在获取或传递过程中，或者各种影像强化处理的错误，便于增加分析者识别兴趣点特征的能力。) |