Filter Settings that Improve Encoding Quality

Many encoding applications offer filter settings that are applied during the encoding process to improve the quality of the final output.



Deinterlacing

Deinterlacing is strongly recommended for all NTSC and PAL video footage.

Important: Apply deinterlacing BEFORE you scale the video.

What is interlacing? Video footage designed for display on a standard television (NTSC or PAL) is interlaced, meaning that the odd and even lines of video are from different moments in time. Computers display these odd and even lines at the same time, resulting in a comb-like pattern of horizontal lines during high-motion scenes.

How does deinterlacing work? A deinterlacing filter attempts to reduce or eliminate interlacing artifacts. many compression packages now offer an improved method of deinterlacing, sometimes called adaptive or intelligent deinterlacing.

Cropping  

Cropping is recommended for all NTSC and PAL video footage.

Cropping 18 pixels from the top and bottom of the image and 24 pixels from each side approximates the appearance of video on a standard television.

Image area differences between analog TV and computers:

  • Analog televisions lose 10 to 15% of the outer image area because of overscanning. The viewable area of the video on a television is referred to as the "action safe" or "picture safe" area.
  • Computer monitors, however, display the ENTIRE original image, which can reveal a thin black border or other anomalies not visible on a standard television.
Brightness & Contrast  

Increasing the contrast slightly (+5 to 10) may make the video appear more vibrant on a computer monitor, depending on your source video.

 
Noise Reduction  

Flix Pro users:
Use a Noise Reduction setting of 4 or lower.

Sorenson Squeeze users:
Select "Light Noise Reduction."

Noise Reduction can help a grainy video compress more efficiently, but may reduce detail in the image.



View the filter settings dialog box for Flix Pro and Sorenson Squeeze.