Body: <p>My laptop screen is <strong>1366x768p</strong> (WXGA, 16:9).</p>
  
  <p>If the player (potplayer) zooms in on a <em>1080p</em> movie (which shows upper and lower black bars) up to <strong>125%</strong>, what effetive quality does the movie end up being?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-18T06:41:26.140Z
Comments.Text: That really depends on your definition of quality
Comments.UserDisplayName: stib
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-18T09:14:32.517Z
Comments.Text: @stib is the movie effectively still  Full HD?
Comments.UserDisplayName: GJC
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-18T09:34:58.217Z
Comments.Text: So the player is stretching the movie to fill the screen?
Comments.UserDisplayName: stib
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-18T10:06:39.637Z
Comments.Text: @stib no it's zooming in on the movie, just the opposite method
Comments.UserDisplayName: GJC
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-18T12:12:23.057Z
Comments.Text: That makes no sense, unless it makes the screen physically smaller.
Comments.UserDisplayName: stib
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-18T15:05:34.110Z
Comments.Text: @stib https://www.youtube.com/watch?v=p0G28wjqvLQ
Comments.UserDisplayName: GJC
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-19T00:24:12.980Z
Comments.Text: Yep, so it's stretching the movie to fit the screen. Since it's cropping off pixels, then you're not getting the full 1920x1080 raster. But here's the thing: on a 1366x768 screen, the highest resolution you can achieve is 1366x768.it will *never* be 1080p, there aren't enough pixels.
Comments.UserDisplayName: stib
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-19T08:30:12.107Z
Comments.Text: @stib if now the original movie is 720p, and the screen still  has a resolution 1366x768p. Is the movie still 720p after being proportionally zoomed in on up to 125%?
Comments.UserDisplayName: GJC
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-19T12:36:10.143Z
Comments.Text: Well it won't have gained any extra pixels, those 720 pixels will be interpolated to fit over 768 pixels (which is usually a lossy process), and pixels from the side will be cropped. Whether you could call it 720p or not is kinda a question of semantics.
Comments.UserDisplayName: stib
Tags: <video-quality><zoom><video-player>
Title: Movie quality after zooming in
UserDisplayName: GJC
ThreadText: # Movie quality after zooming in
  
  (Asked by: username_0 on 2020-04-17)
  
  My laptop screen is **1366x768p** (WXGA, 16:9).
  
  If the player (potplayer) zooms in on a *1080p* movie (which shows upper and lower black bars) up to **125%**, what effetive quality does the movie end up being?
  
  **Tags:** video-quality, zoom, video-player
  
  > **Comments:**
  > **username_1**: That really depends on your definition of quality  
  > **username_0**: @username_1 is the movie effectively still  Full HD?  
  > **username_1**: So the player is stretching the movie to fill the screen?  
  > **username_0**: @username_1 no it's zooming in on the movie, just the opposite method  
  > **username_1**: That makes no sense, unless it makes the screen physically smaller.  
  > **username_0**: @username_1 https://www.youtube.com/watch?v=p0G28wjqvLQ  
  > **username_1**: Yep, so it's stretching the movie to fit the screen. Since it's cropping off pixels, then you're not getting the full 1920x1080 raster. But here's the thing: on a 1366x768 screen, the highest resolution you can achieve is 1366x768.it will *never* be 1080p, there aren't enough pixels.  
  > **username_0**: @username_1 if now the original movie is 720p, and the screen still  has a resolution 1366x768p. Is the movie still 720p after being proportionally zoomed in on up to 125%?  
  > **username_1**: Well it won't have gained any extra pixels, those 720 pixels will be interpolated to fit over 768 pixels (which is usually a lossy process), and pixels from the side will be cropped. Whether you could call it 720p or not is kinda a question of semantics.  
  
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  ## 0 answers
  
  