【摘要】 本文提出用非线性记录的全息复合光栅作为微分滤波器,用它作图象处理将在一级衍射处得到,在二级衍射处得到。实验与理论分析相一致。更多还原

【Abstract】 This paper presents the composite holographic grating recorded with nonlinearity as a differentiation filter.An input image processed by composite holographic grating recorded with nonlinearity will yield at one of the diffraction orders the differentiation output, g(x, y)/ x yields at the first diffraction order, and 2g(x, y)/ x2 yields at the second diffraction order. The experimental demonstrations are in agreement with the theoretical analysis.更多还原