Sử dụng photoshop cs5 part 60 ppsx

ptg Type 351 Screening back type In these instructions, you’ll use a Levels adjustment layer to screen back type. A lightened version of the image will be visible only within the type shapes. To screen back type: 1. Create a document that contains a medium to dark image layer and an editable type layer (the type color won’t matter). We recommend using a large font size and a bold or black font style. A 2. On the Layers panel, Ctrl-click/Cmd-click the T icon, hide the type layer, then click the underly- ing image layer or Background. 3. On the Adjustments panel, click the Levels button. e Levels controls display and the type disappears from view temporarily. 4. Move the gray Input Levels slider to the left to lighten the midtones in the type. You also can move the Input Levels highlights slider. Move the Output Levels shadows slider to the right to reduce the contrast in the type. B–C ➤ To screen back the imagery instead of the type, after the last step above, click the Levels adjust- ment layer, then on the Masks panel, click Invert. ➤ To reposition the type over the imagery, click the adjustment layer, then drag the type shape in the document with the Move tool. ➤ You can apply layer eects to the adjustment layer, for some great results (try Drop Shadow, Inner Shadow, or Bevel and Emboss). A  e o r i g i n a l d o c u m e n t c o n t a i n s a n i m a g e layer and an editable type layer. B  e m a s k o n t h e L e v e l s a d j u s t m e n t l a y e r i s restricting the adjustment to the type shapes. C  e t y p e i s n o w s c r e e n e d b a c k . O n l y p i x e l s within the character shapes are aected by the Levels adjustment layer. ptg 352 Chapter 20 Putting type in a spot color channel To create type in a spot color channel: 1. Display the Channels panel, then from the panel menu, choose New Spot Channel. 2. In the New Spot Channel dialog, click the Color swatch, and if necessary, click Color Libraries to display the Color Libraries dialog. 3. From the Book menu, choose a spot color match- ing system, such as a PANTONE system (non- process), click the desired color or type a number from a swatch book, then click OK twice. 4. Display the Layers panel, and create some edit- able type. 5. Ctrl-click/Cmd-click the T icon on the Layers panel to select the type shapes, then hide the type layer. A 6. On the Channels panel, click the new spot color channel. 7. Choose Edit > Fill (Shift-Backspace/Shift-Delete). In the dialog, choose Use: Black; Mode: Normal; and an Opacity value that matches the tint, or density, value of the spot color ink to be used on press. If you don’t know what value that should be, ask the production manager on the project. Click OK. e selection will ll with the color that you chose for the spot color channel. 8. Deselect (Ctrl-D/Cmd-D). e type shapes should appear in the new spot channel on the Channels panel (but a layer isn’t created on the Layers panel). B ➤ To reposition the type shapes in the spot color channel, click the spot color channel, then with the Move tool, drag in the document. ➤ You can’t edit the type characters in a spot color channel. Instead, you have to redo it from scratch. Fill the channel with White, 100% Opacity, edit the original type layer, then repeat steps 5–8 above. B Because our type shapes are now in a spot color channel, our commercial printer will be able to create a special printing plate for them. A  e t y p e i s converted to a selection. ptg layer styles IN THIS CHAPTER Applying layer effects (general info). . . . . . . . . . . . . . .353 Applying a shadow effect. . . . . . . . .356 Applying a glow effect . . . . . . . . . .358 Applying a bevel or emboss effect . . .360 Applying the Satin effect . . . . . . . . .362 Applying the Overlay effects . . . . . .362 Applying the Stroke effect . . . . . . . .364 Copying, moving, removing layer effects . . . . . . . . . . . . . . . . . . .364 Applying layer styles . . . . . . . . . . . .365 Creating layer styles . . . . . . . . . . . .366 21 As a Photoshop user, you’re in the business of creating illusions. With layer eects, you can accomplish this in short, easy steps. e Photoshop eects that you can apply alone or in combination include Drop Shadow, Inner Shadow, Outer Glow, Inner Glow, Bevel and Emboss, Satin, Color Overlay, Gradient Overlay, A Pattern Overlay, and Stroke. Once applied, layer eects can be edited, hidden, or removed at any time. And best of all, when you modify layer pixels, the eects update accordingly (they should be called “Smart Eects”!). In this chapter, we include generic instructions for applying, copying, moving, and removing layer eects; individual instructions for each eect; and nally, the steps to save and apply eects, combined with other Layers panel settings, as styles via the Styles panel. Applying layer effects (general info) Layer eects can be applied to any layer (even to edit- able type), but not to the Background. ey aect all the visible pixels on a layer and update instantly if you add, modify, or delete pixels from the layer that con- tains them. Each individual eect can be turned on or o at any time via its own visibility icon. Layer eects are applied and edited via the Layer Style dialog and are listed on the Layers panel below the layer they belong to. Before exploring the indi- vidual eects, familiarize yourself with these generic instructions. To apply layer effects (generic instructions): 1. Do any of the following: Double-click to the right of a layer name; or for an image layer (not a type or Smart Object layer), you can double-click the layer thumbnail instead. Click a layer, then choose an eect from the Add Layer Style menu at the bottom of the Layers panel. A  r e e e  e c t s a r e a p p l i e d t o t h i s e d i t a b l e t y p e : D r o p S h a d o w , Bevel and Emboss, and Gradient Overlay. Continued on the following page ptg 354 Chapter 21 e Layer Style dialog opens. A 2. Click an eect name on the left side, check Preview to preview the eect in the image, then choose settings. 3. Optional: Click other eect names to apply additional eects to the same layer. 4. Click OK. 5. Edit the layer (e.g., for a type layer, edit the type; for an image layer, add or erase some pixels). Watch as the “smart” eect(s) update instantly! On the Layers panel, layers that contain eects have this icon: . Click the arrowhead next to the icon to expand or collapse the list of eects for that layer ( B , next page). 6. To change the settings for an eect or to add more eects to a layer, double-click the layer or the Eects listing, or double-click the eect name, which is nested below the layer name. 7. To hide or show one layer eect, expand the eects list for the layer, then click the visibility icon for the eect. To hide all the eects on a layer, click the visibility icon for the “Eects” listing. ➤ If you readjust the Angle for an individual eect while Use Global Light is checked, that angle will be applied to any other eects that are using the Global Light option. is option unies the lighting across multiple layer eects. ➤ If you move layer pixels, any eects on the layer will also move. A In the Layer Style dialog, click the name for the layer eect that you want to display and choose settings for (the box becomes checked automatically).  e C o n t o u r p r e s e t s d e  n e t h e e  e c t prole. Gray areas in the thumbnail represent opaque pixels, and white areas represent transparency. To close the preset picker, either double-click a contour or click in the dialog. ptg Layer Styles 355 What kind of imagery can layer effects be applied to? ➤ We recommend applying the layer eects that work inward or outward from edges — Drop Shadow, Inner Shadow, Outer Glow, Inner Glow, Bevel and Emboss, and Stroke — to a type layer, shape layer, or any layer imagery that’s sur- rounded by transparent pixels. A To isolate a subject from its background before applying layer eects, select an area of a layer, then press Ctrl-J/Cmd-J (the Layer via Copy command). ➤ You can apply the Satin, Color Overlay, Gradient Overlay, and Pattern Overlay eects either to fully opaque layers or to layers that contain transparency. Note: Don’t bother creating a selection before apply- ing a layer eect. Your selection will be ignored by the Layer Style command. CHOOSING DEFAULT LAYER STYLE SETTINGS ★ ➤ To establish new default settings for a particular layer effect, choose the desired settings in the Layer Style dialog, then click Make Default. ➤ To restore the default settings to a layer effect that you established by clicking Make Default (or to restore the factory default settings, if you didn’t establish user default settings), click Reset to Default. ➤ To restore the settings that were in place in all the panels when you opened the Layer Style dialog, Alt-click/Option-click Reset (Cancel becomes Reset). ➤ Unfortunately, the only way to restore the factory default settings to all layer effects is by resetting all the Photoshop preferences. Hold down Ctrl-Alt-Shift/ Cmd-Option-Shift while relaunching the program, and click Yes in the alert dialog. To hide or show an individual eect, click its visibility icon. To open the Layer Style dialog, choose an eect from the Add Layer Style menu (or double-click the layer). Any eect that is already applied to the current layer will have a check mark.  e f x i n d i c a t e s that this layer contains layer eects. B Click the arrowhead to expand or col- lapse a list of layer eects. To hide or show all the eects for a layer, click the Eects visibility icon. A  e L a y e r s p a n e l for this image is shown above right: Layer eects are applied to an image layer that contains transparency; the underlying layer is solid white. ptg 356 Chapter 21 Applying a shadow effect You can create a drop shadow or inner shadow with just a few clicks of the mouse. To apply the Drop Shadow or Inner Shadow effect: 1. On the Layers panel, double-click next to a layer name to open the Layer Style dialog. A 2. Click Drop Shadow or Inner Shadow. 3. Choose a Distance value (in pixels) by which you want to oset a drop shadow from the origi- nal layer shapes, B or for the width of an inner shadow. C–D ➤ You can also change the position of a shadow by dragging in the document while the dialog is open, but be aware that this will also repo- sition any other eects that are using the Global Light option. Choose a Spread percentage for a Drop Shadow or a Choke percentage for an Inner Shadow to control where the shadow begins to fade. Choose an overall Size for the shadow (in pixels). 4. You can also change any of these settings: Choose a Blend Mode from the menu. (For a drop shadow, we usually keep the default setting of Multiply.) To choose a dierent shadow color, click the color swatch, then choose a color from the Color Picker or click a color in the document with the eyedropper (the new color previews immedi- ately). Click OK. Note: If you change the color for an inner shadow, you may also want to change the Blend Mode to Normal. Choose an Opacity percentage for the transpar- ency level of the shadow (the default value is 75%, but we usually lower it). Choose an Angle for the angle of the shadow relative to the original layer shapes. In the Quality area, you can click the Contour arrowhead and choose a preset from the picker for the edge prole of the shadow (we’re usually satised with the shape of the default Contour). Check Anti-aliased to soften any jagged edges between the shadow and the layer imagery. Adjust the Noise level. e addition of noise (speckling) can help prevent banding on print output, but a low value is best. A  e o r i g i n a l i m a g e c o n s i s t s o f s o m e g a r d e n t o o l s o n one layer and a background pattern on another layer (we created the pattern via Filter > Render > Clouds). B  e D r o p S h a d o w e  e c t i s a p p l i e d . C  e o r i g i n a l i m a g e c o n s i s t s o f e d i t a b l e t y p e o n o n e layer and a blue-gray background pattern on another. D  e I n n e r S h a d o w e  e c t i s a p p l i e d . ptg Layer Styles 357 For the Drop Shadow eect, if the layer Fill opac- ity is below 100% or the layer blending mode isn’t set to Normal, check Layer Knocks Out Drop Shadow to prevent the shadow from show- ing through transparent areas on the layer. 5. Click OK. If you’re not satised with the shape of the resulting shadow, follow the steps below. ➤ To scale the eects on a layer without scaling the other layer content, right-click the Eects listing and choose Scale Eects, then specify the desired Scale percentage in the dialog. Depending on the time of day and the angle of the sun or another light source, cast shadows are either short or elongated. You can reshape a drop shadow via the Distort command. To transform a Drop Shadow effect: 1. Apply the Drop Shadow eect (see the preceding instructions), A and keep that layer selected. 2. To transfer the shadow eect to its own layer, right-click the Eects listing on the Layers panel, choose Create Layer(s) from the context menu, then click OK in the alert dialog, if one appears. 3. Click the new Drop Shadow layer. B 4. Choose Edit > Transform > Distort, drag the han- dles of the transform box to slant the shape, then press Enter/Return. C For a symmetrical perspec- tive distortion, hold down Ctrl-Alt-Shift/Cmd- Option-Shift as you drag a corner handle. Note: If you don’t see all the handles, press Ctrl-0/Cmd-0 (zero) to enlarge the document window. ➤ To limit any painting or ll changes to just the shadow shape, on the Layers panel, activate the Lock Transparent Pixels button. ➤ To ensure that the image and shadow layers will move and transform as a unit, Shift-click them, then click the Link Layers button at the bottom of the panel. A  e o r i g i n a l l a y e r h a s a D r o p S h a d o w e  e c t . B We clicked the new Drop Shadow layer… C …then we elongated the shadow. LAYER OPACITY AND FILL SETTINGS A quick reminder from the preceding chapter: The Opacity setting on the Layers panel controls the opacity of layer imagery — including any layer effects — whereas the Fill setting controls only the opacity of layer imagery — not of layer effects. . . . . . . . .366 21 As a Photoshop user, you’re in the business of creating illusions. With layer eects, you can accomplish this in short, easy steps. e Photoshop eects that you can. . . .356 Applying a glow effect . . . . . . . . . .358 Applying a bevel or emboss effect . . . 360 Applying the Satin effect . . . . . . . . .362 Applying the Overlay effects . . . . . .362 Applying. Style command. CHOOSING DEFAULT LAYER STYLE SETTINGS ★ ➤ To establish new default settings for a particular layer effect, choose the desired settings in the Layer Style dialog, then click Make