打开App
360P
阿勇pr课堂第七十四课 键控中的Alpha调整、亮度键、图像遮罩键
介绍了Alpha调整是针对有Alpha通道的透明素材有效果，可以调整素材不透明度，忽略Alpha，反转Alpha和仅蒙版，亮度键是根据素材的明暗，通过调整阈值和屏蔽值，把素材中的亮部或者暗部抠出
Premiere 2018 基础教程74/120
App02:42
App03:21
App02:14
App02:39
App02:23
App02:36
App02:42
App02:49
App04:00
App02:49
App02:47
App01:55
App02:35
App02:33
App02:13
App03:00
App01:30
App04:16
App02:20
App01:39
App03:20
App02:42
App01:46
App01:49
App02:12
App03:50
App03:18
App02:51
App03:05
App03:13
App02:05
