ps怎么对明暗度不统一的人物图进行抠图?
<p>ps怎么快速抠出明暗度不统一的人物图?我们需要使用不同的工具进行抠图,可以直接用通道抠出高光发丝;然后再用其它工具提取出暗部发丝。详细内容请看下文介绍。</p><p><div class="arc_down"><img src="https://img.jbzj.com/do/uploads/litimg/130419/142543D237.jpg"><p class="arc_down_title">Adobe photoshop 7.01 官方正式简体中文版</p><ul><li><span>类型:</span>图像处理</li><li><span>大小:</span>154MB</li><li><span>语言:</span>简体中文</li><li><span>时间:</span>2013-04-19</li></ul>查看详情</div></p>
<p style="text-align: center">最终效果</p>
<p style="text-align: center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254272.jpg" /></p>
<p style="text-align: center">原图</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254273.jpg" /></p>
<p>1、打开原图素材大图,按<span style="color: #ff0000"><strong>Ctrl + J </strong></span>把背景图层复制一层,如下图。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254274.jpg" /></p>
<p>2、进入通道面板,来分析一下各通道。<strong>红通道高光部分的发丝非常清晰,不</strong>过左下角和右下角部分的发丝都是较暗的,并与高光发丝融合起来<strong>,用通道很难全部抠出</strong>。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254275.jpg" /></p>
<p>3、<strong>绿通道与红通道</strong>比较接近,只是高光发丝有点暗。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254276.jpg" /></p>
<p>4、蓝通道暗部发丝不够明显。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254277.jpg" /></p>
<p>5、我们先来<span style="color: #ff0000"><strong>抠取高光发丝</strong></span>。红通道极为理想。选择红通道,按<strong>Ctrl + A </strong>全选,按<strong>Ctrl + C 复制</strong>。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254278.jpg" /></p>
<p>6、点<strong>RGB通道返</strong>回图层面板,新建一个图层,按<strong>Ctrl + V 把</strong>复制的红通道粘贴进来,如下图。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254279.jpg" /></p>
<p>7、按<span style="color: #ff0000"><strong>Ctrl + J </strong></span>把当前图层复制一层,混合模式改为“<span style="color: #ff0000"><strong>正片叠底</strong></span>”,如下图。</p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254280.jpg" /></p>
<p>8、创建色阶调整图层,增加明暗对比,参数设置如下图,<strong>确定后把蒙版填充黑色。</strong></p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254281.jpg" /></p>
<p align="center"><img alt="" src="https://img.jbzj.com/file_images/photoshop/201707/2017071614254282.jpg" /></p>
<p>
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