Chỉ cần làm theo các bước này bằng cách sử dụng hình ảnh ban đầu từ trang web của khóa học ( / downloads), hoặc sử dụng một hình ảnh của riêng bạn. 1. Mở tập tin trong Photoshop. Các hình ảnh sẽ trông giống như một hiển thị trong hình . Hình vòm này được giảm ngược, bởi vì máy ảnh bị nghiêng bắn | Chapter 3 Darkroom Techniques with Photoshop CS2 97 setting the more glow is spread throughout your picture. The Clear Amount slider controls the size of the area in the image that is not affected by the glow. You can use this control with the Glow Amount slider to simultaneously specify how strong a glow effect is produced as well as how much of the image is illuminated by it. The current background color becomes the color of the glow. That s an important point. Beginners sometimes forget this and then wonder why their glow effect looks weird. If you want a glowing white effect make sure the background color is white. Anything else will tint your image. You can use this feature to good advantage by selecting background colors with a very slight tint of yellow gold or red to add a sunny or warm glow to your image. In the examples the portrait in the upper right has the Graininess control set to 5 the Glow Amount control set to 10 and the Clear amount set to 20. At lower Figure The original photo top left with three variations on the Diffuse Glow filter. 98 Adobe Photoshop CS2 Photographers Guide left the diffusion is less obvious and the contrast not quite as high producing a romantic fuzziness that doesn t take over the entire picture. I used Graininess Glow amount and Clear amount settings of1 4 and 12 respectively. Finally for the example in the lower right I concentrated the attention on the model s eyes by using settings of 7 10 and 15 and then merged the layer with a copy of the original unmodified layer using the Layer palette s Merge drop-down list set to Lighten. In that mode Photoshop looks at each pixel in the two layers and uses the lightest pixel for the final image. The resulting picture is very washed out and grainy with an interesting high-contrast appearance. Black-and-White Infrared Film The look of black-and-white infrared films is not a darkroom effect but instead is a result of using in conventional situations specialized films that are .
