Effects / Auto Levels/Colors & Contrast Effects
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Continuing my survey on some of the more important of Premier Pro CS3's filter effects, we also have some more effects in the Adjust bin. Let's close the Color Corrector bin and there's an Adjust bin here at the top. Here you have Auto Color, Auto Contrast, Auto Levels. Let's go back and remove my Color Balance effect and now Auto Color. These three effects make quick global adjustments to a clip. Auto Color adjusts the contrast and color of a clip by neutralizing the mid-tones and clipping the white and black pixels. Auto Contrast adjusts the overall contrast and mixture of colors without introducing or removing color casts. Auto Levels automatically corrects the highlights and shadows and the Adobe documentation for Premier Pro CS3 notes that because auto levels adjust each color channel individually it may remove or introduce color casts. Let's go ahead and apply some examples here. Let's do Auto Levels first to this clip. Let's try this other clip right here and see if we can get more of a drastic; that looks pretty good. Notice that if I turn off the Auto levels here you can see the change. It makes it a little bit more gray, less green on that particular clip. Let's do an Auto Contrast as well. There's the Auto Contrast with; without there and with, there is with the Auto Contrast, and there is without. So oftentimes what I'll do is I'll go ahead and apply the effect filter and then turn it off and turn it on to see the effect without making any adjustments to the settings here. Notice that for Auto Levels you have a variety of settings: White Clip, Black Clip; the same with Auto Contrast. Let's do Auto Color. Let's choose the Gage Clip here to do Auto Color. Drag and drop the filter on there, and there's the difference there with Auto Color. And that will wrap up this review of some of the more important of Premier Pro CS3's filters here in the Video Effects bin of the Effects panel. Obviously there are quite a number of video effects that I did not cover in various categories, such as Channel Blur and Sharpen, GPU effects distort, such as Magnify, Mirror, Off-set, Spherize; some of these you may be familiar with. They're very similar to Photoshop filters and effects. You've got also Image Control Generate for generating cell patterns, grids, lens flares, and so on. So I recommend that you review these by applying them to the same clip so you can see the differences between them. I don't have any more time to review the many, many other filter effects that are here. I encourage you to experiment. Also, you can read about these various effect filters in the Adobe Premier Pro Help area. That will do it for this section of the tutorial on Effects. In this section you've learned how to work with Fixed and Standard effects; how to animate effects with Keyframes; how to set your keyframe interpolation. You've learned about viewing the properties of your effects in the Effect Controls window, as well as clip transparency and alpha. You've learned a lot about chrominance-based keys, and also color correction. Let me now move on to the next section of the tutorial on working with audio.
Tutorial Information
| Course: | Adobe Premiere Pro CS3 |
| Author: | James Gonzalez |
| SKU: | 33834 |
| ISBN: | 1-934743-40-2 |
| Release Date: | 2007-12-20 |
| Duration: | 8 hrs / 98 lessons |
| Captions: | For Online University members only |
| Compatibility: |
Vista/XP/2000, OS X, Linux QuickTime 7, Flash 8 |
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