准备材料:PS软件,电脑,要处理的照片。
1、打开电脑里的PS软件并新建一个白色背景的画布。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/c8177f3e6709c93d225e6558913df8dcd00054f4?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、新建白色背景图后再用PS在白色画布上拖入需要进行背景拉伸的照片。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b21bb051f819861894d0862b44ed2e738ad4e68e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、点击PS软件左侧工具栏中的“套索工具”,使用套索工具圈出不想变形的区域形成选区。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a7bf079809bcad1c8a6865d99?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、确认不变形选区后点击鼠标右键进行存储,存储选区时可自定义名称“人物主体”。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/810a19d8bc3eb1357744de14a81ea8d3fc1f4499?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、存储不变形选区后再按下快捷键Ctrl+D键取消选区,并在PS上方的菜单栏中点击打开“编辑--内容识别比例”菜单选项。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3812b31bb051f81927b26ae5d4b44aed2f73e78e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、打开“内容识别比例”选项后在“保护”里选择存储好的“人物主体”选区,再拉伸图片背景即可完成拉伸图片背景而不使选区变形的操作。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d8f9d72a6059252d33e474ab3a9b033b5ab5b9aa?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
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