Body: <p>sorry if this sounds a little off topic but it actually has to do with video editing. I made once a logo image as a transparent png to use in virtualdub but since virtualdub logo plugin doesnt allow png I had to convert it to PNG and make an alpha image to use along with it in order to make it look transparent on the video.</p>
  
  <p>Now I need that original image but I lost it and I have only the 2 BMPs. Is there any way to get a transparent png out of those?</p>
  
  <p>Thank you. </p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-05-16T16:07:46.057Z
Comments.Text: You can do it in Photoshop. See the selected answer here: http://graphicdesign.stackexchange.com/questions/2231/how-to-create-alpha-mask-from-an-image-in-photoshop-cs-8
Comments.UserDisplayName: Gyan
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-05-16T16:23:21.527Z
Comments.Text: Welcome Cain :) Please start with the tour: http://video.stackexchange.com/tour. First bmp is alpha channel only (black and white) and the second is rgb?
Comments.UserDisplayName: p2or
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-05-20T05:12:17.297Z
Comments.Text: Both are black and white actually. Its a gray logo with 50% of opacity so one of the BMPs has the logo with a white background whereas the other one has it on a black one.
Comments.UserDisplayName: Cain Nuke
Tags: <video>
Title: Getting a transparent image from a bmp with alpha
UserDisplayName: Cain Nuke
ThreadText: # Getting a transparent image from a bmp with alpha
  
  (Asked by: username_0 on 2015-05-16)
  
  sorry if this sounds a little off topic but it actually has to do with video editing. I made once a logo image as a transparent png to use in virtualdub but since virtualdub logo plugin doesnt allow png I had to convert it to PNG and make an alpha image to use along with it in order to make it look transparent on the video.
  
  Now I need that original image but I lost it and I have only the 2 BMPs. Is there any way to get a transparent png out of those?
  
  Thank you.
  
  **Tags:** video
  
  > **Comments:**
  > **username_1**: You can do it in Photoshop. See the selected answer here: http://graphicdesign.stackexchange.com/questions/2231/how-to-create-alpha-mask-from-an-image-in-photoshop-cs-8  
  > **username_2**: Welcome username_0 :) Please start with the tour: http://video.stackexchange.com/tour. First bmp is alpha channel only (black and white) and the second is rgb?  
  > **username_0**: Both are black and white actually. Its a gray logo with 50% of opacity so one of the BMPs has the logo with a white background whereas the other one has it on a black one.  
  
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  ## 0 answers
  
  