|< Day Day Up >|
Editing Still Images
Okay, the question on the table is this: Your digital camera takes shots at a princely resolution of, say, 2160 x 1440 pixels. The maximum DVD video resolution is 720 x 480. How do you resolve the difference?
To answer this question, let's first get a bird's-eye view of how Studio works with still images and then explore the different ways you can crop your images so that you can present them most effectively in Studio.
How Studio works with images
Studio takes an admirably laissez-faire approach to images, basically displaying them as you place them in the movie. It doesn't try to fill the screen with your image, stretching it horizontally or vertically, or trim your image to fit; it simply makes your image larger or smaller to fit the screen without changing the aspect ratio. If this means that your image doesn't completely fill the 720 x 480-pixel DVD frame, so be it. At least there's no distortion.
Studio also provides
Figure 5.13. The black bars beside Rosie 2 and Rosie 3 are Studio's way of telling you that the image resolution isn't optimal.
Rosie 1 is the original 2160 x 1440-pixel image, shot by turning the camera to the side to capture Rosie's glam pose Rosie 2 is the same image
If you click Rosie 2 to preview her in the Player, you see large areas of black to her left and right, which is precisely the way the image would appear in the final DVD or video (
). This is Studio's way of telling you that the image doesn't match the final resolution of your project, and Studio is not going to squish or
Figure 5.14. Here's the big view of Rosie 2. let's get a bit closer.
The Rosie picture
Figure 5.15. Rosie 3. I've cropped most of the bottom, making Rosie slightly bigger.
Figure 5.16. Rosie 4. Full-screen Rosie, providing a much closer look and filling the screen.
The obvious question is, what image resolution must you use to totally fill the Player window and eliminate those black bars? Since picture
What this means is that for every 4 horizontal pixels, you must grab 3 vertical pixels. To grab the image of Rosie, the capture resolution was 1120 pixels across and 840 pixels high. If you divide 1120 by 4, you get 280. Multiply 280 by 3 and you get 840.
It's a pain, but keep a calculator
Figure 5.17. The secret's in the tool: Ulead's PhotoImpact lets you constrain an image to a 4:3 aspect ratio, so that you can easily grab the best image.
The other obvious question is, why can't you capture at an aspect ratio of 4:2.66, which is the aspect ratio for 720 x 480 pixels—the ultimate resolution at which you'll be displaying the video? The complete answer is long, confusing, and involves arcane differences between how computers and
The quick, empirical answer is this: If you capture at the 4:2.66 aspect ratio and enter the result, Studio
Figure 5.18. Your brain says 720 x 480 resolution, but those black bars above and below the image say no, no, no.
Finding the Rose in the Garden
Now it should be easy to tackle the problem in the second example: a picture of Rose in her mother's garden. It's a wonderful shot of the garden, but this slide show is actually about Rose, not her mother's green thumb. ( Figure 5.19 ).
Figure 5.19. Here's Momma's garden, but where is the Rose?
To zoom in on Rose, I cropped the image using the fixed aspect ratio of 4:3, while following the rule of
Figure 5.20. The benefit of working with megapixel images is that I can zoom in without distortion. Once again the screen is filled by cropping the photo to create an aspect ratio of 4:3.
|< Day Day Up >|