基于层次增强的彩色印刷图像处理研究

Research on Color Printing Image Processing Based on Hierarchical Enhancement

彩色图像阶调层次校正是印刷图像处理中的一个重要环节之一。将设计一些图像阶调层次校正的处理模块,建立以参数控制为主的图像阶调层次校正处理流程。研究过程将利用幂函数实现输入色阶校正算法,采用线性函数实现输入色阶校正算法,依据直方图均衡化实现直方图校正算法。实验结果表明,所设计的功能模块能够在图像阶调层次校正中满足后续印刷环节的需要,其检测数据也说明图像处理的具有较强的可靠性,应用也及为方便。

Color image gradation correction is one of the important steps in printing image processing. Designs some processing modules of image halftoning level correction,and establishes a processing flow of image halftoning level correction based on parameter control. The power function is used to implement the input level correction algorithm,the linear function is used to implement the input level correction algorithm,and the histogram equalization is used to implement the histogram correction algorithm. The experimental results show that the designed functional module can meet the needs of the subsequent printing process in the image gradation level correction,and its detection data also shows that the image processing has a strong reliability,and the application is also convenient.