Jaiswal A K, Bhushan J
Appl Opt. 1974 Aug 1;13(8):1839-43. doi: 10.1364/AO.13.001839.
A relationship between the image contrast and the object contrast for a general periodic or a truncated periodic object is derived. The result is illustrated for a periodic object of rectangular wave profile. It has been shown that for a truncated sine wave object the image contrast bears a nonlinear relationship to the object contrast. The contrast dependence of the measured or the apparent transfer function defined as the ratio of the image contrast to object contrast has been investigated.
推导了一般周期性或截断周期性物体的图像对比度与物体对比度之间的关系。以矩形波轮廓的周期性物体为例说明了该结果。结果表明，对于截断正弦波物体，图像对比度与物体对比度呈非线性关系。研究了定义为图像对比度与物体对比度之比的测量传递函数或表观传递函数的对比度依赖性。
