The optical methods of pseudocolor encoding of black and white picture based on density encoding some colour have been presented, but all methods required encoding process.
将黑白图象用光学手段按其密度编成各种颜色的方法，已有些报道，但均需编码过程。
2
The display has been incorporated with a low_reflectance black matrix and optical compensation films for high_quality performance.
为了使性能更好，器件还采用了低反射率黑矩阵和光学补偿膜。
3
The abnormal block and black round structure of 50 axletree steel was studied and analyzed using optical microscopy, transmission electron microscopy, electron probe and so on.