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.As long as you do a reasonably careful job, the performance of theExtract command won t be impaired.Photoshop Chapter 9 &' Masks and Extractions405Edge highlighterFill EraserFigure 9-20: After tracing around the portion of the image you want to retain,click inside the outline with the fill tool.Turn on the Smart Highlighting check box, in the Tool Options section of the66Extract dialog box, to get some assistance in drawing your outline.SmartHighlighting seeks out edges in the image and places the highlight along them.When you turn on Smart Highlighting, your cursor becomes a circle with fourinward-pointing lines.Keep the center of the circle over the edge between thesubject and the background as you drag.This feature works best when yoursubject has well-defined edges, of course.Note that you can t Shift-click withthe tool to draw straight segments when Smart Highlighting is active.TipCtrl-drag to temporarily turn off Smart Highlighting without deselecting thecheck box.Or go the opposite direction: Deselect the check box and thenCtrl-drag to temporarily take advantage of Smart Highlighting.4.As you trace, use the bracket keys, [ and ], to make the brush larger orsmaller.When you work with brushes from 1 to 9 pixels in diameter, eachpress of [ or ] changes the brush size by 1 pixel.The increment of changegets larger as you increase the brush size.Photoshop Part III &' Selections, Masks, and Filters406TipSmall brush sizes result in sharper edges.Larger brush sizes are better forfragile, intricate detailing, such as hair, foliage, wispy fabric, bits of steel wool,thin pasta you get the idea.5.If you make a mistake, press Ctrl+Z.As I mentioned before, the Extract win-66dow now has a much needed Undo function.But you get only one Undo levelhere you can only undo and redo your last stroke with the highlighter tool.If you want to erase more of the highlight, drag over the botched region withthe eraser tool (press E to access it from the keyboard) or use Alt-drag withthe edge highlighter tool.To delete the entire highlight and start over, pressAlt+Backspace.6.Navigate as needed.If you can t see all of your image, you can access thehand tool by pressing the spacebar or clicking the hand tool icon.You canalso zoom by pressing Ctrl+plus or Ctrl+minus, or by using the zoom tool.7.Select the fill tool.It s the one that looks like a paint bucket.To select the fill66tool from the keyboard, press G, same as you do to select the paint bucket inthe regular Photoshop toolbox.(Formerly, the shortcut for both the fill tooland paint bucket was K.)8.Click inside the subject of the image.The highlighted outline should fill withcolor.If the fill color spills outside the outline, then there s probably a break inyour outline someplace.Press Ctrl+Z to undo the fill and then scroll the imagewith the hand tool to find the break.Patch it with the edge highlighter andthen click with the fill tool again.TipYou also can click inside a filled area with the fill tool or eraser to removethe fill.9.Click the Preview button.Before you can apply your prospective mask, youneed to preview it so you can gauge the finished effect, as in Figure 9-21.If you Shift-click with the fill tool in Step 8, Photoshop fills the outline and66processes the preview automatically, saving you the trouble of clicking thePreview button.10.Edit the mask as needed.You have several tools at your disposal in66Photoshop 6.The tools are labeled in Figure 9-21; you can read aboutthem in the list following these steps.11.Click the OK button to delete the masked portion of the image.If the imagewas flat, Photoshop floats it to a separate layer.You can then use the movetool to drag the masked image against a different background.In Figure 9-22, Iset my lion against an Italian landscape.The composite isn t perfect, but it snot half bad for five to ten minutes of work.PhotoshopPhotoshopPhotoshopPhotoshop Chapter 9 &' Masks and Extractions407EyedropperCleanup Edge touchupFigure 9-21: Click the Preview button to gauge the appearance of the finalmasked image.Figure 9-22: I believe this particular lion is stuffed, but even a dead creaturemay enjoy a change in its diorama. Part III &' Selections, Masks, and Filters40812.After you exit the Extract window, fix any problems using the backgrounderaser and history brush.Use the background eraser (explained in Chapter 7)to erase stray pixels that you wish the Extract command had deleted.Use thehistory brush to restore details that you wish the Extract command hadn tdeleted.Back in Step 10, I alluded to ways that you can refine the mask within the Extractdialog box.In Photoshop 6, you can use the following techniques to touch up themask before clicking OK to create it:&' Drag with the cleanup tool (C) to change mask opacity: Press the number66keys to adjust the pressure of the tool and thus alter the amount of opacitythat the tool subtracts.To erase to full transparency, press 0, as you do whenworking with the eraser on a layer.Press 9 for 90 percent transparency, 8 for80 percent, and so on.Alt-drag to add opacity.&' Drag along the boundaries of the mask with the edge touchup tool ( T ) tosharpen the mask edges.If the boundary between mask and subject isn t welldefined, dragging with this tool adds opacity to the subject and removes itfrom the mask.In other words, it turns soft, feathery edges into crisp, clearlydefined edges.Again, you can press the number keys to adjust the impact ofthe tool.&' Raise the Smooth value to remove stray pixels from the mask: A high valuesmoothes out the edges around the image and fills in holes.Basically, if youredges are a big mess, give this option a try.&' Drag with the edge highlighter or eraser tools to edit the mask boundary.When you select either tool, the original mask highlight reappears, and thetools work as they do when you initially draw the highlight.After you adjustthe highlight, Shift-click inside it to redraw and preview the adjusted mask.&' Choose an option from the Show pop-up menu to toggle between the origi-nal highlight and the extracted image preview.Figure 9-23 spotlights thisoption.You can press X to toggle between the two views without botheringwith the pop-up menu.Figure 9-23: To toggle between theextraction preview and the originalhighlight, choose the view you wantfrom the Show pop-up menu or justpress X.Photoshop Chapter 9 &' Masks and Extractions409That s 99 percent of what you need to know about the Extract command.For thoseof you who care to learn the other 1 percent, here s a quick rundown of the remain-ing options that appear along the right side of the Extract window.Note that some of the option names have changed in Version 6, but all the functions66remain the same as in Version 5.5.You do, however, have access to some new key-board shortcuts for these options:&' Highlight, Fill: Use these pop-up menus to change the highlighter and fillcolors.It doesn t matter what colors you use, so long as they show up wellagainst the image.&' Channel: Advanced users may prefer to prepare the highlighter work by trac-ing around the image inside an independent mask channel, which you can cre-ate in the Channels palette prior to choosing the Extract command.Then loadthe mask by selecting it from the Channel pop-up menu.You can further mod-ify the highlight using the edge highlight and eraser tools.One weirdness:When loading a mask, black in the mask channel represents the highlightedarea, white represents the nonhighlighted area.Strikes me as upside-down,but that s how it goes
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