Question

ps图像合成怎么让抠取的人物图像更真实地融合于图像背景之中？

Answer 1

1、比如我想要将一张人物照片放到我上次合成的一张草地小溪的场景之中。那么就需要先找到素材和图片。

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2、首先将人物图片在PS软件中打开，要想合成人物图像，必须先将人物从背景中抠取出来。想要抠取的惊喜一点，可以用钢笔工具抠取人物的身体部分，头发部分用调整边缘会好一点。
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3、将抠取好的人物图像拖拽进我的背景图中。放的太大显然不合先大概看一下背景图，找到视屏线的位置，大概就是草地的尽头。远处的树干顶端位于视屏线的位置。
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4、修饰一下人物的脚部，创建蒙版，将草地的部分擦除一点点，让人感觉是踩在草地中的感觉。
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5、人物的影子也要跟树保持一致。复制一层人物图层，向下压缩调整成影子的方向，填充深绿色，颜色更改为正片叠底。
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6、整个背景呈现的是蓝色和绿色，人物图层则是暖色。需要调节一下色彩平衡增加一些绿色和蓝色，让人物本人的颜色跟背景颜色更融合。
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7、完成效果图。

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Answer 2

一般用抽出或通道抠人像，合成的时候要注意光线、色彩、明暗度、对比度的调整