Field Blending - Revision history

Ballofsnow: /* More examples */ Added another example.

2009-09-03T22:27:41Z

‎More examples: Added another example.

Ballofsnow: More examples

2008-07-03T16:50:06Z

More examples

Ballofsnow: intro

2008-07-03T16:39:53Z

intro

Ballofsnow: Blending is bad - version 1

2008-07-02T22:42:22Z

Blending is bad - version 1

New page

==Introduction==
Blending is bad.

 
==The field blending process==

<table width=700 valign=top cellspacing=0 cellpadding=10>
<tr>
<td>1. A single interlaced frame. It has two distinct fields, which I will call field A and field B, happening a split second apart. 
<center>[[Image:Fieldblending_ABi.png]]</center></td>
</tr>
<tr>
<td>2. The fields have been split. Field A has the even-numbered lines, while field B has the odd-numbered lines. 
[[Image:Fieldblending_A1.png]] [[Image:Fieldblending_B1.png]]</td>
</tr>
<tr>
<td>3. The actual vertical height of field A and B. Nothing necessarily bad has happened yet... 
[[Image:Fieldblending_A2.png]] [[Image:Fieldblending_B2.png]]</td>
</tr>
<tr>
<td>4. Problem number one! The fields are resized to the original height. Vertical detail is lost. 
[[Image:Fieldblending_A3.png]] [[Image:Fieldblending_B3.png]]</td>
</tr>
<tr>
<td>5. The final stage. Field A and B are blended together at different opacities. The result is a "ghosting" effect. 
<center>[[Image:Fieldblending_ABfb.png]]</center></td>
</tr>
</table>

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← Older revision		Revision as of 16:50, 3 July 2008
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		+	<br>
		+	==More examples==
		+
		+	[[Image:Fieldblending_Zelda.jpg]]

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 ==Introduction==
-Blending is bad.
+Field blending, also known as "ghosting" is a deinterlacing method that is <b>unacceptable at SDA</b>. It's too easy to get stuck with a cheap capture card and cheap software that will produce a video with this effect. I think there may also be some fault with the user. People new to video capturing/editing will think they've done something wrong when they see "all those weird lines" in an interlaced frame and choose a different and incorrect interlacing setting, most likely progressive field blending.
 <br>