Adobe photoshop cs2 ユーザーズマニュアル

ADOBE PHOTOSHOP CS2 

Select Invert to reverse the light and dark colors on the surface.

For Light Direction, indicate the direction from which the light source sheds light on the image.

You can use various techniques to treat the edges of an effect applied to only part of an image. To leave a distinct edge, 
simply apply the filter. For a soft edge, feather the edge, and then apply the filter. For a transparent effect, apply the 
filter, and then use the Fade command to adjust the selection’s blending mode and opacity. 

You can apply filters to individual layers or to several layers in succession to build up an effect. For a filter to affect a 
layer, the layer must be visible and must contain pixels—for example, a neutral fill color. 

You can apply a filter to an individual channel, apply a different effect to each color channel, or apply the same filter 
but with different settings. 

By applying effects to solid-color or grayscale shapes, you can generate a variety of backgrounds and textures. You 
might then blur these textures. Although some filters have little or no visible effect when applied to solid colors (for 
example, Glass), others produce interesting effects. 

Using masks to create selection areas gives you more control over transitions from one effect to another. For example, 
you can filter the selection created with a mask. 

You can also use the History Brush tool to paint a filter effect onto part of the image. First, apply the filter to an entire 
image. Next, step back in the History palette to the image state before the filter was applied, and set the history brush 
source to the filtered state. Then paint the image. 

You can disguise faults, alter or enhance images, or create a relationship among images by applying the same effect 
to each. Use the Actions palette to record the steps you take to modify one image, and then apply this action to the 
other images.