用通道扣头发,做法如下:
打开素材图片并复制一个图层.(照片是从网上随意找的,只是做教程用)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0e2442a7d933c895f01c6e3dd71373f082020011?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
打开通道面板,选一个头发和背景颜色差别最大的一个通道,在这里我选的是绿色通道。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6609c93d70cf3bc7696e3caad700baa1cd112a0e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
因为在蓝色通道里人物头发和背景的颜色差别相对来讲是最大的。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/5bafa40f4bfbfbed82e7c7397ef0f736afc31f3d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
将绿副本进行调色处理,增加黑白对比度,这里用曲线进行调整!
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9922720e0cf3d7ca0f4ccd30f41fbe096b63a93a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
背景与头发反差大。将头发即身体的地方用橡皮擦擦,颜色保持白前黑后,将整个人涂成黑色!
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d53f8794a4c27d1ed6fec6821dd5ad6edcc4389f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
用魔棒选择黑色,调出选出。回到图层页面。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/5d6034a85edf8db1041480220f23dd54564e74ba?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
Ctrl+J,得到选区图片。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0824ab18972bd407278d2fbb7d899e510fb30929?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
用橡皮擦,处理头发边缘多余的背景。得到最终效果图!(处理的时候慢一些,会让细节更家完美)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b03533fa828ba61e48f236694734970a304e595c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)