tonal gradation

基本解释

The outer rectangular bounds and tonal-gradation information are employed to be eigenvectors to match respective targets, so as to get the speed of them.
利用最小外接矩形和灰度信息作为各目标的特征向量，匹配各目标对象，以求取各目标运动速度。
A master of tonal gradation and soft edges, he prepared the way for the Impressionist landscape painters and had an important influence on Claude Monet, Camille Pissarro, and Berthe Morisot.
柯洛是精通色调渐层法和柔和边线的大师，他替印象派风景画家们开辟了一条道路，对后来的画家莫内、毕沙罗和摩里索影响很大。
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