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Need to mask a color matte

Feb 19, 2013 3:18 PM

Hi all,

 

I'm (re) learning Premiere (CS6), transitioning off of FCP 7. In FCP 7, I constantly used the color matte feature, made it black, 70% opacity and added a soft focus to it (shown below).

I do this to draw attention to an area of the screen I want the viewer to focus on (usually software demos highlighting a feature).

 

In Premiere, I've gotten as far as adding a black color matte with 70% opacity. That covers the entire image with the matte. Now how do I cut through the matte? Scale Height/Width changes the matte itself, but I want to do the reverse, like the photo below. In FCP mattes can be scaled horizontally and vertically, producing the desired effect, below.

I'm still learning this tool, so any help would be greatly appreciated!

 

 

matte mask w blur.png

 
Replies
  • Currently Being Moderated
    Feb 20, 2013 12:08 AM   in reply to SeanH_bos

    There are many ways to skin this cat. For nice straight lines like your example, try this:

     

    For the purposes of being able to see this better, I created a green (0,0,255) matte to put on the sequence fist.

     

    Create a title. Draw a rectangle that takes up approximately one third of the frame. I used a rectangle that is 1280X240. Set it to be 70% black.

     

    Copy the rectangle and paste the copy at the bottom of the frame.

     

    Your result should look like this:

     

    Capture.JPG

     

    When put over the timeline, apply a Fast Blur set to Vertical and 25% or so.

     

    This isn't the best image for this example but it is what I had on hand:

     

    Capture.JPG

     

    For something a little different, use a track matte made with a title if you wish. With the original on track one and the copy on track two, darken the clip on track two. I prefer to darken track two and reverse but you can darken one if you wish. You can do this with Brightness and Contrast or you can get fancy with color correction.

     

    Create a title with a white circle or oval or whatever, placed over the subject to be highlighted. (Multiple shapes can be combined in the title)

     

    Apply the track matte to the clip on track two. Check the Reverse checkbox.

     

    Simple. Looks like this:

     

    Capture.JPG

     

    I didn't blur the matte this time, but I could have. This one would be blurred in the vertical and in the horizontal.

     

    Please note that this does not like changes to the Motion Effect. If you are resizing the clip or image, remember to put the matte in a new sequence and nest the new sequence to be used as the matte.

     

    Now, if you really, really want to blur the edges of the garbage matte, apply the Roughen Edges effect, set the border to 25 and the edge sharpness to zero. Max out the scale for more accurate edges.

     

    Capture.JPGCapture.JPG

     
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  • Currently Being Moderated
    Feb 20, 2013 2:15 AM   in reply to SeanH_bos

    Many of the third-party color correction plugins will include their own masking tools - such as Magic Bullet - but of course they cost money.

     

    You may also want to take a look at Power Window, which is donationware. It's not 100% stable at the moment but should be able to do everything you need in this case.

     
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  • Currently Being Moderated
    Feb 20, 2013 3:11 AM   in reply to SeanH_bos
     
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  • Currently Being Moderated
    Feb 20, 2013 6:40 AM   in reply to Ann Bens

    Wow! Creative Impatience. Not only a cool name, but cool tools as well.

     

    Nice link. Thanks.

     
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