The method of BP neural network and the method of multiple multivariate nonlinear regression were comfortable for copy with dominant hue green and blue.
BP神经网络法与多重多元回归法对以绿色调和蓝色调为主的原稿分色有优势，三维查找表法对以蓝色调为主的原稿分色有优势。
The author begins to describe with his artistic techniques, using black as dominant hue instead of natural colors, showing the exuberant and luxuriant crops.
作者以艺术化的手法展开描绘，以黑色为主色调，代替了自然的本色，营造了庄稼的繁茂与幽深之感。
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