CHAPTER 10 ADVANCED COMPOSITING 395 Figure 10-18. (My web server)
CHAPTER 10 ADVANCED COMPOSITING 395 Figure 10-18. The top layer was moved five pixels to the right and five pixels down while in Grain extract mode. Adding Blurs and Other Tricks for Artistic Effects Gaussian Blurring the top layer instead of offsetting it before using Grain extract gives an effect like a tintype photo (Figure 10-19). Reversing the layers putting the blurred layer beneath the original rather than above it gives a similar effect except that the colors are reversed the flowers are darker than the background, instead of lighter. Sometimes you can use Gaussian Blur instead of an offset when using other layer effects, like Divide. Typically, a blur gives a somewhat weaker, more subtle effect than an offset. Edges won t be emphasized as strongly. There s a compromise between the two: use a Motion Blur, which blurs in a specific direction. Since it s directional, Motion Blur acts a lot like an offset; but it smooths out the effect, giving less emphasis to the edges and more to the gradations within the image. The color accents are also muted. The difference can be subtle, but try it and see whether you like it better. By now, you probably see what s going on. Most images will have sudden changes in color where they transition from one object (a flower) to another (the background). These artistic effects all capitalize on those transitional edges. Anything that causes the edges to spread or interfere will give an interesting and sometimes unexpected result when you use Divide, Difference, Subtract, or Grain extract.
We recommend high quality webhost to host and run your jsp application: christian web host services.