Invelos Forums->General: General Discussion |
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Measuring a Screen Cap |
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| Registered: April 3, 2007 | Reputation:  |  Posts: 1,998 |
| | Posted: | | | | OK I've never tried to measure a screen cap before so not sure if i have done it right.  I took a screen cap with VLC Media player opened it in Photoshop Elements which says the size is 853 x 480 pixels i divided this to get 1.7770833 = 1.78:1 is that right? I'm assuming that if the 3rd number after the decimal point was below 5 then it would be 1.77:1 | | | | Last edited: by ninehours |
| | Registered: June 12, 2007 | | Reputation: |  Posts: 2,665 |
| | Posted: | | | | Were it me i'd stick with the standard settings if i were anywhere near that close to one (like 1.78:1). | | | | Bad movie? You're soaking in it! |
| | Registered: March 13, 2007 | | Reputation: |  Posts: 3,195 |
| | Posted: | | | | Sounds correct, but it would depend what you are trying to measure; the image file or the display area of the film (minus any black bars). | | | | First registered: February 15, 2002 |
| | Registered: April 3, 2007 | | Reputation: | | Posts: 1,998 |
| | Posted: | | | | The image i measured (now added to original post) had no black bars, and if there were black bars i assume you would crop them before measuring | | | | Last edited: by ninehours |
| | Registered: March 13, 2007 | | Posts: 21,610 |
| | Posted: | | | | Quoting tweeter: Quote:
Were it me i'd stick with the standard settings if i were anywhere near that close to one (like 1.78:1). Agreed Skip | | | ASSUME NOTHING!!!!!!
CBE, MBE, MoA and proud of it.
Outta here
Billy Video |
| | Registered: March 29, 2007 | | Posts: 158 |
| | Posted: | | | | Everything is good. To the nearest two decimal places, or to an accuracy of three significant digits, 853/480 = 16/9 = 1.78, which is generally the aspect ratio of available widescreen viewing devices, so, assuming your viewer is widescreen, it is a perfect fit without black bars anywhere. |
| | Registered: March 13, 2007 | | Reputation: |  Posts: 1,946 |
| | | Registered: March 13, 2007 | | Reputation: | | Posts: 3,195 |
| | Posted: | | | | Actually, an anamorphic DVD has exactly the same number of pixels as standard video but it is stretched horizontally by the viewing device. Had it been non-anamorphic, it would have been a 640x480 image with black bars on a 1:1 (square pixel) display. The source image size would have been something like 704x480 (or 720x480) since a video pixel is not assumed to be a square 1:1, but rather something like 10:11. A proper viewer will compensate for this with minimum image distortion. | | | | First registered: February 15, 2002 |
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