Bedienungsanleitung Adobe Premiere Pro CC - 2015 (Seite 476 von 519) (Englisch)

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Effects and transitions

Last updated 11/30/2015

• The editing or animation software that last rendered the clip had the field dominance set opposite that of the original

clip,

• The clip is set to play backward.

Create interlaced or non-interlaced clips

Ordinarily, individual interlaced fields aren’t apparent to a viewer. However, playing a clip in slow-motion, creating a

freeze frame, or exporting a field as a still image can make a single field distinguishable. For these purposes, it is

sometimes preferable to deinterlace the image—that is, replace pairs of consecutive interlaced fields with single non-

interlaced frames. Premiere Pro can generate these new non-interlaced frames from the fields in one or two source

frames.

One unwanted interlacing artifact arises from a mismatch between the field order of a clip, and that of a sequence. Field

order specifies whether the field of odd-numbered lines (the upper field) or the field of even-numbered lines (the lower

field) is drawn first. For example, placing a clip with upper field order in a sequence using lower field order could result

in jerky playback. You can correct this problem by reversing the field order of the clip so that it matches that of the

project. You use the Reverse Field Dominance option to reverse the field order.

1 Select a clip in a Timeline panel or in the Project panel. Choose Clip > Video Options > Field Options.

2 Select Reverse Field Dominance to change the order in which the clip fields play back.

3 For Processing Options, select one of the following choices:

None Doesn’t apply any of the Processing Options. Selecting this option does not disable Reverse Field Dominance,

if that option is checked.

Interlace Consecutive Frames Converts each pair of consecutive progressive-scan (non-interlaced) frames into the

two interlaced fields of a single frame. This also results in the clip running at twice its original frame rate. This option

is useful for interlacing clips created by animation applications not capable of generating interlaced frames. Ideally,

you could use it to convert 60-fps progressive-scan animations into 30-fps interlaced video.

Always Deinterlace Converts interlaced fields into non-interlaced, progressive-scan, frames. This option is useful

for clips you want to play in slow motion or in freeze frame. This option discards one field (retaining the dominant

field specified for the project in the Fields setting in the New Sequence dialog box, General tab). Then it interpolates

the missing lines based on the lines of the dominant field.

Note: In a sequence with No Fields (Progressive Scan) selected in the Fields menu, Always Deinterlace retains the upper

field. However, in this type of sequence, if you also select Reverse Field Dominance, Always Deinterlace retains the lower

field.

Flicker Removal Prevents thin horizontal details in an image from flickering by slightly blurring the two fields

together. An object as thin as one scan line flickers because it can appear only in every other field. This option blurs

consecutive lines 50%; it does not deinterlace the clip. It is especially useful for graphics containing thin horizontal

lines.

4 Click OK.

To improve the appearance of video when the clip speed is not 100%, turn on frame blending. Choose Clip > Video

Options > Frame Blend.

Change the field order of a clip

In the Project panel, you can change the field order of all instances of a clip in all sequences of a project.

1 In the Project panel, right-click the clip for which you want to change the field order.

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