首次提出用联合变换相关的概念，把Ｈａａｒ子波和ＲＯｂｅｒｔｓ滤波器分别与目标图像一起作为联合图像，实现对目标图像的子被交换，提取出目标的角、边及边沿增强等特征．并设计了一套由计算机控制的光学联合子波变换系统，可实现对目标“真实”的光学子波变换．还给出了数值模拟结果． The concept of joint transform is proposed for the first time. The Haar wavelet and ROberts filter are combined with the target image respectively to make the sub-image of the target image be exchanged, and the features such as the angle, edge and edge enhancement of the target are extracted. And a computer-controlled optical joint wavelet transform system is designed to realize the “true” optical wavelet transform of the target. Also given numerical simulation results.