40 get pixel alpha value 2013-01-30T13:40:28.590

12 Extracting the layer transparency into an editable layer mask in Photoshop 2010-11-09T08:56:04.780

6 Point sample opacity/alpha in Adobe Photoshop? 2010-03-29T20:03:23.927

6 Turn grayscale into alpha channel in Paint.net 2017-03-08T17:13:44.370

5 ffmpeg: change alpha channel of a showwaves filter 2014-02-15T10:07:24.263

4 Is there any way to save a PNG-8 file with Alpha Transparency in Photoshop? 2011-05-17T20:56:18.083

3 overlay a sample video with alpha channel over another video in gstreamer 2013-09-07T20:26:23.337

3 How do I add a background to a transparent png in gimp? 2014-04-21T19:58:25.767

2 Alpha plugin in GStreamer not working 2010-05-03T09:22:13.717

2 Keep alpha transparency in indexed PNG from Fireworks when batch resizing using convert (ImageMagick) 2011-12-29T09:12:43.120

2 How do i convert a transparent .mov-file to an mp4 file overlayed on a background-image using FFMPEG 2013-03-05T11:43:22.960

2 Using ffmpeg to create a video from a sequence of TGA images, with a depth of field blur effect sourced from the TGA's alpha channel 2016-03-19T19:02:06.193

2 How can you test a video with alpha channel before merging it with another video? 2016-07-12T10:09:50.827

2 Integrating ffmpeg4 with Pyglet. What is correct method to identify streams with alpha? 2018-06-14T06:51:00.620

2 Lossless Video Codec supporting Alpha Channels 2019-11-27T20:34:42.210

1 Render Video as png with Alpha 2012-08-23T00:48:16.387

1 .MOV video compressed with PNG has no alpha channel 2012-11-02T18:17:53.343

1 How to combine multiple similar images with "holes" into one good one? 2013-01-10T12:53:21.573

1 opensource vp6a encoding 2013-04-12T07:12:14.737

1 Is it possible to overlay video with alpha channel over the desktop in real time (Windows)? 2016-02-16T17:29:37.180

1 ffmpeg -- How do I overlay a PNG over another PNG? 2017-02-23T16:17:23.410

1 Apply depth of field blur effect from a grayscale video using ffmpeg 2017-12-30T00:18:21.240

1 Lossless VP9 Webm Encoding of PNG Sequence with Alpha in FFmpeg 2019-12-17T22:14:27.283

0 Convert TIFF with Alpha Channel to PNG? 2010-12-27T14:16:40.110

0 How can I convert the color in this button into an alpha transparency so that any background will show through, changing the color of the button? 2011-11-05T05:20:02.037

0 How do I discard transparency channel when encoding files with bpgenc? 2015-09-03T17:03:23.930

0 How to concatenate different sized videos and then overlay with transparency on a background in ffmpeg? 2017-07-04T22:43:41.727

0 How to get exact alpha value in Photoshop 2018-01-16T15:45:14.807

0 Convert bmp to png and black colors to alpha 2018-06-16T20:49:11.207

0 Alphamerge filter only works on first frame 2018-07-22T17:11:13.750

0 Is it possible to compress alpha and RGB channels of PNG sequence separately with FFmpeg? 2020-01-15T21:10:31.863

0 ffmpeg merge videos including one with alpha transparency with mp3 audio 2020-01-26T19:00:30.140