Experiment with BlackandWhitephotographs to draw out shape and texture.
尝试黑白摄影，来提取形状体块和质地。
2
The absence of color often enhances our perception of form for instance in blackandwhitephotographs.
比如在黑白摄影中，无色彩更能让我们感受到形体的存在。
3
This paper mainly studies how to distinguish old blackandwhitephotographs and chromophotographs that in human vision, and presents an algorithm to classify them.