Apple Compressor 2 Manual de usuario descargar pdf (Pagina 187)

Chapter 14 Adding Filters to a Setting 187

Because interlacing creates two fields for each frame, areas with fast movement within

the field become separated into alternating jagged lines. You can view your source

media one frame at a time and check for horizontal stripes along the leading and

trailing edges of moving objects. If you find these, you need to deinterlace your source

media to convert it to a frame-based format.

Note: For deinterlacing, the Frame Controls feature is recommended over the

Deinterlacing filter (a legacy filter) as it will always provide much higher quality. See

“Working With Frame Controls” on page 195 for more information.

Removing Video Noise

You can improve image quality and spatially compress your material more efficiently

by reducing its fine detail. Video noise is any sort of excessive detail which can make

compression more difficult. The noise reduction filter allows you to blur areas of low

contrast while leaving high-contrast edges sharp. This is known as adaptive noise

reduction. The results are imperceptible to the human eye, but improve the final

compression of the source media. It is especially important to use this filter with

live video.

Color Spaces

Compressor supports the following color spaces—YUV (R408), 2VUY, RGBA, ARGB, and

YUV (v210). Some filters require a color space conversion and some filters can handle

various color spaces. For each media file, Compressor chooses the most suitable color

space to provide the best output and performance results based on the color space of

three attributes: the source media format, the output file format, and chosen filters.

Interlacing creates

a “comb” effect that

should be removed.

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Apple Compressor 2 Manual de usuario Pagina 187