It considers edge points and dark or light area when embedding watermark information.
在嵌入水印信息时先考虑边缘点，再考虑亮度较暗和较亮区域。
Homomorphic filtering is a frequency domain operation to compress image light area and enhance contrast.
同态滤波是一种将亮度范围压缩和对比度增强的频域处理方法。
The fluorescent probe and a composite thereof have simple structures and are easy to prepare, and excitation wavelength and emission wavelength are both in a visible light area.
该荧光探针及其组合物结构简单，易于制备，激发和发射波长均在可见光区。
The results indicated that five of them have suitable spectra and light transmissivity decreased in UV-light area but keep above 85% in visible light area, which we've expected before.
结果表明，其中有几种薄膜光谱匹配性较好，与空白对照膜相比，紫外光的透光率降低，但可见光透光率都在85%以上。
The results indicated that five of them have suitable spectra and light transmissivity decreased in UV-light area but keep above 85% in visible light area, which we've expected before.
结果表明，其中有几种薄膜光谱匹配性较好，与空白对照膜相比，紫外光的透光率降低，但可见光透光率都在85%以上。
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