在特殊领域运算形式——结构元素（Sturcture Element），在每个像素位置上与二值图像对应的区域进行特定的逻辑运算。运算结构是输出图像的相应像素。运算效果取决于结构元素大小内容以及逻辑运算性质。(In the special field, the form of computation is Sturcture Element, which performs specific logic operations on every pixel location corresponding to the two value image. The operation structure is the corresponding pixel of the output image. The operation effect depends on the content of the structure element and the nature of the logical operation.)