图层混合属性模式设置成覆盖，然后用画笔工具，选白色，然后去画想要去除紫边的区域。

Set the blending mode to Overlay. With the brush tool, paint white in the mask where you want the correction to occur.

youdao

紫骝马还认得旧时游玩路迹，嘶叫着跑过了画桥东边路。

Purple Steed, you know the old paths; neighing you cross a painted bridge on the way across the eastern Banks.

youdao

紫骝马还认得旧时游玩路迹，嘶叫着跑过了画桥东边路。

Purple Steed, you know the old paths; neighing you cross a painted bridge on the way across the eastern Banks.

youdao