Closing a Document
To conserve your computer's resources, close any Photoshop documents you are not working on. You can close open documents one at a time (choose Close from the File menu or click the Close button on the Document tab), or you can use one command to close all open documents without closing the program (choose Close All from the File menu) and apply the save option to all of them at once. Either way, if you try to close a document without saving, a dialog box appears, prompting you to save your changes.
Close a Document
o
Closebuttononthe Documenttab
Click the Close button on the Document tab or click the File menu, and then click Close or Close All. TIMESAVER
o
Press Ctrl+W (Win) or ~+W (Mac) to close the active document.
If necessary, click Yes (Win) or Save (Mac) to save your changes.
Did You Know? You can close all documents in one step. Click the File menu, and then
click Close All. If necessary, click Yes or Save to save your changes for each document. To apply the option to all open documents, click the Apply to All check box. You can also press Alt+Ctrl+W (Win) or Option+~+W (Mac) to close all documents. You can close documents and open Bridge in one step. If you wish to close
the open document or documents and then open Bridge, click the File menu, and then click Close And Go To Bridge.
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Chapter 1
Getting Started with Photoshop CC
31
Now that you've decided how you want to save your document, it's time to leave Photoshop. You'll want to make sure that all of your documents have been properly saved and closed before you exit Photoshop. Photoshop performs a bit of memory management, saves the current location of the panels and toolbox, and then quits.
Finishing Up
Exit Photoshop from Windows
o o o
Click to exit Photos hop
Click the File menu. Click Exit. TIMESAVER Click the Close button on the program window or press Ctrl+Q to exit Photoshop. If necessary, click Yes to save your changes. Photoshop closes and you are brought back to your desktop.
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Click the Photoshop menu. Click Quit Photoshop. TIMESAVER Press ~+Q exit Photoshop.
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If necessary, click Save to save your changes.
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32
Chapter 1
7. I.
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Understanding Navigation and Measurement Systems Introduction When you go on a road trip, you need two things to make the trip a success: good navigational aids (maps), and an understanding of how to measure distances between two points on a road map (1 inch typically equals 100 miles). When you are working with Adobe Photoshop, one of the keys to making the journey a success is to understand the navigational and measurement aids available. Photoshop lets you choose a measurement system to fit a specific project. For example, if you're working on images destined for the web or a monitor, you'll be using pixels as a measurement system. Conversely, if you're outputting to paper, or possibly a 4-color press, you'll likely choose inches or picas. Selecting between different measurement systems does not impact the quality of the final image, only how you measure distance. Trust me on this one; understanding how to measure distance helps to make the journey an enjoyable experience (I know from experience).
What You'll Do Change the View Size and Area with the Navigator Panel Change the Color of the Navigator Panel View Box Change the Screen Display Mode Change the View with the Zoom Tool Increase or Decrease Magnification Move Images in the Document Window Work with Multiple Documents Work with One Image in Multiple Windows Move Layers Between Documents
Having problems squinting at the small details of a photographic image? Using the Zoom tool is a great way to get you focused where you need to be. Zooming into a specific section of a document makes touching up the fine details just that much easier. In addition, the Info panel gives you up-todate information on the exact position of the cursor inside the document, as well as detailed color information that can be indispensable in color-correcting an image. The ability to create text annotations allows you to record document information that might be vital to the processing of the image and pass it on to anyone who opens the document. Photoshop's navigation and measurement systems are more than just information; they represent control of the document and control of the creative process.
Create Notes Work with the Info Panel Change How the Info Panel Measures Color Work with Rulers Take Measurements in an Image Count Objects in an Image Create Tool Presets
33
Changing the View Size with the Navigator Panel
Photoshop's Navigator panel gives you an overall view of the image and the ability to navigate through the document or change the zoom size. Viewing images at different sizes gives you the ability to focus on . small elements of the design without actually changing the image in any way. Once small areas of an image are enlarged, it's easier for you to make minute changes. Zoom size determines the visible size of an image; the zoom percentage can be seen in the document window. Zooming in (enlarging the image) by using the handy magnifying glass lets you work on and manipulate fine details, and then you can zoom out (reduce the image) to view how the changes impact the entire image. The maximum magnification of a Photoshop document is 3200%, and the minimum size is 1 pixel. The Navigator panel contains a thumbnail view of the image, and under the thumbnail are easy-to-use controls that let you adjust the zoom of the image. In addition, changes made in the Navigator panel are immediately viewable in the active document window (what you see is what you get).
Change the View Size with the Navigator Panel
o o
Select the Navigator panel. Histogram
Info
Use one of the following methods to change the view size: Drag the triangular slider to the right to increase the zoom or to the left to decrease the zoom. â&#x20AC;˘
â&#x20AC;˘
Click the small and large mountain icons, located to the left and right of the triangular slider, to decrease or increase the zoom. Enter a value from .2% to 3200% into the Zoom box.
Did You Know? There are additional ways to zoom in using the Navigator panel. In the View box, hold down the Ctrl key, and then drag to resize the active document. You can constrain the view box to drag horizontally or vertically. Hold down the Shift key, and then drag the view box horizontally or vertically.
34
Chapter 2
Clickmountainiconsto increase or decreasethe zoom.
25%
Entera zoomvalue
Dragsliderto zoom
For Your Information Navigator Panel Shortcut You can control the view of the document through a great shortcut. Simply click once in the Zoom input box on the Navigator panel, and then use the Up/Down arrow keys to increase or decrease the zoom value of the document 1% at a time. Not fast enough for you? Then hold down the Shift key, and use the Up/Down arrow keys to change the zoom size 10% at a time. Press the Enter key to see your changes reflected in the active document window.
Changing the View Area with the Navigator Panel
Zoomed images are typically larger than the size of the document window. When this happens, Photoshop adds navigational scroll bars to the bottom and the right of the document window. However, using scroll bars is not the only way to change your position within the image; the Navigator panel gives you a visible approach to changing the viewable area of the image. The view box in the Navigator panel represents the visible boundaries of the active document window, which is the viewable area of the image.
Change the View Area with the Navigator Panel
o •
Select the Navigator panel.
••
Drag the view box in the thumbnail of the active image. Click within the thumbnail.
....•
The position of the view box changes, which also changes the viewable area of the image in the document window.
Did You Know? You can show the Navigator panel. If the Navigator panel is not visible, click the Window menu, and then click Navigator. You can change the Zoom size of an image using the Navigator thumbnail.
Hold down the Ctrl key (Win) or the ~ key (Mac), and then drag in the thumbnail. When you release your mouse, the selected area expands. It's just like using the Zoom tool, except you're dragging in the Navigator's thumbnail. Conversely, if you drag a second time (this time using a larger rectangle). the image zooms out.
Chapter 2
Understanding Navigation and Measurement Systems
35
Changing the Color of the Navigator Panel View Box
The colored box in the Navigator panel (proxy preview area) defines the viewable area of the image. It's important for the colored lines of the view box to stand out clearly against the image. The default color of the view box is a light red; however, some documents contain images that are predominantly the same color as the colored lines of the viewable area, making the viewing area difficultto identify. By changing the color of the lines, you can make sure they stand out against the image. This may seem like a small thing, but choosing a color that contrasts with my image significantly cuts down on my frustration level when I'm attempting to identify the viewable area.
Change the View Box Calor
o â&#x20AC;˘
o o
Select the Navigator panel. Click the Navigator Options button, and then click Panel Options. Click the Color list arrow, and then click a predefined color, or click Custom to select a color from the Color Picker dialog box.
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-
Viewbox
Click OK.
Did You Know? Youcan increase the size of the Navigator panels thumbnail.
Drag the lower right corner of the Navigator panel to expand the size of the panel. As the Navigator panel increases in size, so does the thumbnail.
Panel Options View Box -------------, OK
Color:
36
Chapter 2
â&#x20AC;˘
light
Red
Cancel
Changing the Color of the Navigator Panel View Box
The colored box in the Navigator panel (proxy preview area) defines the viewable area of the image. It's important for the colored lines of the view box to stand out clearly against the image. The default color of the view box is a light red; however, some documents contain images that are predominantly the same color as the colored lines of the viewable area, making the viewing area difficult to identify. By changing the color of the lines, you can make sure they stand out against the image. This may seem like a small thing, but choosing a color that contrasts with my image significantly cuts down on my frustration level when I'm attempting to identify the viewable area.
Change the View Box Color
o o ••
o
Select the Navigator panel. Click the Navigator Options button, and then click Panel Options . Click the Color list arrow, and then click a predefined color, or click Custom to select a color from the Color Picker dialog box.
,----i---+-
Click OK.
-
View box
Did You Know? You can increase the size of the Navigator panels thumbnail.
Drag the lower right corner of the Navigator panel to expand the size of the panel. As the Navigator panel increases in size, so does the thumbnail.
Panel Options View Box -------------, Color:
36
Chapter 2
•
OK light Red
Cancel
Changing the Screen Display Mode
Since monitor backgrounds, combined with Photoshop's panels, add distracting colors to your workspace, changing the Screen Mode gives you a chance to isolate your image against a solid color background. Viewing your images against a black, gray (dark, medium, or light), or custom background helps your eyes identify the true colors within an image. The Screen Display mode provides different ways to display the active image. For example, you can choose a Screen Mode that changes the background to black, and then hides all the panels.
Change the Screen Mode
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Click Change Screen Mode button on the toolbox to toggle between screen modes or click the Change Screen Mode button arrow, and then select the mode you want:
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Standard Screen Mode. Displays the image against a gray, black, or custom color background (Win), or with the visible desktop (Mac). All menus and panels are visible.
--+++--+-- StandardScreen Mode
Full Screen Mode with Menu Bar. Centers the image, and displays it against a gray, black, or custom color background.
..
.
Full Screen Mode. Centers the image, and displays it against a gray, black, or custom color background. (Default: Black) TIMESAVER
Press Fto toggle between the screen modes. ---1-Ill!
Did You Know?
O.
FullScreenMode with MenuBar
You can temporarily hide a/l of the panels and toolbox. Press the Tab key
to hide the toolbox and panels. Press the Tab key a second time to display the hidden toolbox and panels. Hold down the Shift key, and then press the Tab key to hide the panels, but not the Toolbox or Options bar. In Interface preferences, you can choose to have either a border, a drop shadow or no effect for each screen mode. FullScreenMode Chapter 2
Understanding Navigation and Measurement Systems
37
Changing the View with the Zoom Tool
Working with the Zoom tool gives you one more way to control exactly what you see in Photoshop. Just like the Navigator panel, the Zoom tool does not change the active image, but allows you to view the image at different magnifications. The Zoom tool is located towards the bottom of Photoshop's toolbox, and resembles a magnifying glass. The maximum magnification of a Photoshop document is 3200%, and the minimum size is 1 pixel. Increasing the magnification of an image gives you control over what you see and gives you control over how you work. Large documents are difficult to work with and difficult to view, Many large documents, when viewed at 100%, are larger than the maximum size of the document window, requiring you to reduce the zoom in order to view the entire image. You can also use the 200% view (Newl), which works well for high resolution (HiDPI) displays (Newl).
Zoom In the View of an Image â&#x20AC;˘
o
Select the Zoom tool on the toolbox. Use one of the following methods: Click on the document. Zooms in centered on where you clicked. Drag to define an area with the Zoom tool. Zooms in based on the area boundaries you dragged. When you zoom in to more than 500%, a Pixel Grid appears, making it easy for pixel-specific modifications. To show or hide, click the View menu, point to Show, and then click Pixel Grid, â&#x20AC;˘
38
Bird's Eye View. Press and hold the H key, and then click and hold your mouse to temporarily zoom in (with Hand tool). If only part of image shows, then it zooms out. Drag the zoom marquee to zoom into another spot.
Chapter 2
Click and drag method
Zoom Out the View of an Image
o
Select the Zoom tool on the toolbox. Hold down the Alt (Win) or Option (Mac) key, and then click on the screen to reduce the zoom of the active document.
--
The zoom reduction centers on where you click on the active document.
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Did You Know? You can zoom in or out using shortcut keys regardless of the current tool, To zoom in, press Ctrl-Spacebar (Win) or ~+Spacebar (Mac) and click or drag to define an area. To zoom out, press Ctrt-Spacebar-Alt (Win) or ~+Spacebar-Option (Mac) and click or drag to define an area.
You can continuously zoom. You need to set Animated Zoom in General Preferences and Use Graphics Processor in Performance Preferences. To continuously zoom in, click and drag right or click and hold. To continuously zoom out, click and drag left or Ctrl (Win) or Option (Mac)-click and hold. You can get a better display in high resolution at 200% view, The user
..•.
interface includes HiD PI (New!), which improves the display on high resolution devices, such as a MacBook Pro with Retina display. To help you work better with HiD PI, you can use the 200% view, available on the View menu. You can also Ctrl-double-click (Win) or ~+double-click (Mac) the Zoom tool (New!) to view the active document at 200% or Shift-Ctrl-double-click (Win) or Shift+~+doubleclick (Mac) the Zoom tool (New!) to view all open documents at 200%.
Chapter 2
Understanding
Navigation and Measurement
Systems
39
Increasing or Decreasing Magnification
Since changing the magnification of an image is fundamental to an optimal workflow, Photoshop gives you several ways to zoom. One way is to use the Zoom tool and another is to use zoom options on the Options bar, which includes Resize Windows to Fit, Zoom All Windows, Scrubby Zoom, 100%, Fit Screen and Fill Screen. You can also use the 200% view (New!), which works well for high resolution (HiDPI) displays. To automatically zoom the document to 100%, double-click the Zoom tool, or Ctrl (Win) or ~ (Mac) double-click to zoom at 200%.To automatically fit the image into the workspace, double-click the Hand tool.
Increase or Decrease the Zoom Magnification of an Image
o o
o â&#x20AC;˘
o
o
Select the Zoom tool on the toolbox. Click the Zoom In or Zoom Out buttons on the Options bar, and then click in the document window to increase or decrease the zoom. Select the Resize Windows To Fit check box on the Options bar to resize the active document to fit the zoomed window . Select the Zoom All Windows check box on the Options bar to zoom all open document windows to the same magnification. Select the Scrubby Zoom check box to zoom continuously. If grayed out, enable Use Graphics Processor in Performance Preferences and Animated Zoom in General Preferences. Click and drag left to zoom out or right to zoom in. Click 100% (New!), Fit Screen, or Fill Screen on the Options bar to zoom the screen to a preset size. â&#x20AC;˘ View Menu. Click the View menu, and then click Fit on Screen, 100% (New!), 200% (New!), or Print Size. TIMESAVER
Hold the Ctrl (Win) or~ (Mac) key, and then press the plus "+" (increases) or minus "-" (decreases) keys.
40
View using the 100%button
Chapter 2
~L'''~+-
View using the FitOn Screen button
Moving Images in the Document Window
One of those little used, but handy, tools is Photoshop's Hand tool. The Hand tool lets you quickly move the active image within the document window without ever using the scroll bars. For example, you've zoomed the image beyond the size that fits within the document window and you need to change the visible portion of the document. It's a simple operation, but a handy one to know. If you have OpenGL (enable Use Graphics Processor in Peformance Preferences) on your computer, you can use the Rotate View tool to tilt the canvas for a more comfortable working angle, which is helpful when working with drawing tablets.
Move an Image in the Document Window
o o
Select the Hand or Rotate View tool on the tool box. Drag in the active document to move or rotate the image. When you rotate the image to a different canvas angle, a compass appears to indicate north in the image regardless of the current canvas angle .
o
â&#x20AC;˘ To rotate a specific angle, enter a value in the Rotation Angle field. To restore the image back to the normal canvas angle from a rotation, click Reset View. RotateViewtool
Did You Know? You can quickly access the Hand tool whenever you need it. Hold down the
Spacebar to temporarily change to the Hand tool. Drag in the active document to the desired position, and then release the Spacebar. You're instantly returned to the last-used tool. It's important to note that you cannot use the Spacebar to access the Handtool if you are currently using the Type tool.
Chapter 2
Understanding Navigation and Measurement Systems
41
Working with Multiple Documents
When you open multiple documents, you can use the Window menu or tabs at the top of the Document window to switch between them. You can click a tab name to switch and activate the document. By default, tabs are displayed in the order in which you open or create documents. However, you can change the order. When you want to move or copy information between documents, it's easier to display several Document windows at the same time and move them around. The Arrange submenu on the Window menu makes it easy to display open document windows on the screen for better views.
Work with Multiple Documents
o
Open more than one document. Click a tab name to switch to the document.
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You can also click the Window menu, and then click a document name at the bottom.
Click the Window menu, point to Arrange, and then select an arrangement button icon:
Tile All Vertically. Displays all open documents vertically. Ill!
Tile All Horizontally. Displays
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all open documents horizontally.
•
2-Up Vertical or Horizontal, 3-Up Vertical or Stacked, 4-Up, or 6-Up. Displays the number of documents in a pattern.
Consolidate All to Tabs. Displays the active document.
•
Tile. Displays all open documents in a grid .
•
To move a document window around, do any of the following: To rearrange the order of documents, drag a window's tab to a new location. To dock or undock a document window, drag the window's tab out of the group or into the group.
42
Chapter 2
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Working with One Image in Multiple Windows
There are times when you're working on an image in Photoshop, and you need to see two separate views of the image. For example, you're working on retouching a photo and you need a zoomed-in view to do fine detail work. At the same time, you want to see a normal view to get an idea of how the retouching is affecting the full-sized image. Being able to view one image at two different magnifications is a valuable tool. You can also use the Arrange submenu on the Window menu to rearrange open document windows on the screen for better views.
Create Two Views of One Image
o â&#x20AC;˘â&#x20AC;˘
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Open a document. Click the Window menu, point to Arrange menu, and then click New Window for document name.
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A copy of the active document is created in a new window. If you want to arrange multiple documents, Click the Window menu, point to Arrange menu, and then click an arrangement command (see the For Your Information for more details). Select the Zoom tool on the toolbox, and then increase the zoom of the new document to the desire.d level. Select an editing or painting tool, and then begin work on the new image in the zoomed window. The effects of your work instantly display in the normal image window. When you're done with the new window, click the Close button.
Did You Know? You can prevent the zoomed window from expanding. With the Zoom tool
selected, move into the Options bar and deselect ResizeWindows To Fit.
For Your Information Arranging and Matching Multiple Windows The Arrange submenu on the Window menu provides options to help you work with multiple windows. You can use the Cascade,Tile, Floatin Window, Float All in Windows, and Consolidate All to Tabs commands to display windows across the Photoshop workspace. The Match Zoom, Match Location, Match Rotation and Match All commands allow you to match the zoom and/or location in multiple windows. For example, open multiple images, click the Arrange submenu on the Windows menu, and then click Match All. Select the Zoom tool or Hand tool, select one of the images, hold down the Shift key, and click in or drag an area with the tool. The other images are zoomed to the same percentage and location you chose for the first image.
Chapter 2
Understanding Navigation and Measurement Systems
43
Moving Layers Between Documents
Photoshop has a lot of tricks up its electronic sleeves, and one of the handiest is the ability to move layers between open documents. For example, you have an image of a landscape and sky, but you don't like the sky, so you erase it. You then open another document with a sky that suits the design of your document. It's a simple matter to move the layer containing the preferred sky into any other open document. If you want to include an image from a closed file, you can drag the file into the Photoshop document window or Layers panel to open it as a document and then move it between layers.
Move Layers Between Documents
o
o
o
Open two or more documents. Click on the document containing the layer you want to move to make it the active document. Select the Move tool on the toolbox. Drag the layer you want to move from the open document window into the second document.
IMPORTANT
If the document you're moving a layer into contains more than one layer, Photoshop places the layer you're moving directly above the active layer in the second document. If the layer is in the wrong stacking order, drag it up and down in the Layers panel to move it.
Did You Know? You can also drag a layer thumbnail onto a document. Drag the layer thumbnail from the Layers panel into the document window of the second document or Layers panel.
You can drag a file into a document to open it. Drag a file icon from a file management window into the Photoshop document window or Layers panel to open the file as a document.
44
Chapter 2
From the Experts Corner Removing the Excess If you're dragging a layer from a document that contains more pixels than the document you're moving it into, the areas of the image outside the viewable area of the document are still there, taking up file space. To delete them, first position the image exactly where you want, click the Select menu, and then click Select All. Select the Image menu, and then click Crop. That's it. All the image information outside the viewable window is removed.
Creating Notes
Notes can be found everywhere-you see them stuck to the side of refrigerators, bulletin boards, and even covering your computer monitor. Notes remind you of important tasks and events. When you work in Photoshop, the ability to save notes can help you remember an important part of the design, or they can instruct another designer in the how's and why's of your document. For example, you can attach specific instructions in the form of Photoshop Notes to your service bureau on the printing of a document to obtain the best output. Text input is done through the Notes panel. When you place a note, it doesn't become part of the image, but it is saved with the image.
Create a Note
o o o
Select the Note tool on the toolbox. Click on the active document or the canvas to create a blank note. Enter the text for your note.
Click the note icon to select it and click again to deselect the note. You can also right-click a note icon to access a shortcut menu with note commands.
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Did You Know? You can change the Author and the default calor of a Note. Select a note, and then use the Author and Color options on the Options bar to create a personalized note. You can show and hide note icons by choosing View/Extras/Notes.
Working with Notes Action
Keystrokes
Deselect a note
Click on the selected note to deselect.
Reopen a note
Click on the Note icon and use the Notes panel to edit the text, if desired.
Delete a note
Choose the specific note from the Notes panel, and then press Delete or select the Note and drag it to the Trash can in the Notes panel.
Chapter 2
Understanding
Navigation and Measurement
Systems
45
Working with the Info Panel
Photoshop's Info panel gives you a wealth of data on your document's color space, as well as information on the x and y (horizontal/vertical) position of your mouse cursor within the active document window. When you're using one of Photoshop's drawing or measuring tools, the Info panel gives you up-to-date information on the size of the object you're creating. Photoshop works with black, white, shades of gray, and every color in-between. By creating color markers with the Eyedropper or Color Sampler tools you can identify the location of specific color points within an image, which is indispensable for performing color correction. The Info panel displays color information about the marked color and on how the color has shifted after you've made changes.
Create a Specific Size Obiect
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Select the Info panel. Select a drawing tool on the toolbox.
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The Info panel displays tips on how to use the current tool, and the current size of the working document.
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Create a Calor Marker
o •
Color markers Select the Info panel. Select the Eyedropper or Calor Sampler tool on the tool box. In the document, hold down the Shift key (if using Eyedropper tool), and then click once to create a color marker. You can have a maximum of four Color Markers. To reposition a marker, press the Ctrl (Win) or ~ (Mac) key, and then click and drag the marker to a new position, or drag it off the window to delete it. Click Clear on Options bar to delete all.
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46
Chapter 2
6.
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Changing How the Info Panel Measures Color
Knowledge of the colors used in a document is important, but so is a thorough understanding of the color mode of the document. Different documents require different color modes. For example, images displayed on a monitor use the RGB (Red, Green, and Blue) color mode, and images sent to a 4-color press use CMYK (Cyan, Magenta, Yellow, and Black). Not only does the Info panel measure color, it also measures color in specific color modes.
Change How the Info Panel Measures Color
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Select the Info panel.
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Click the Info Options button, and then click Panel Options.
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Click the Mode list arrows for First Color and Second Color Readout, and then select from the available options.
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Did You Know? The Info panel now allows you to display information such as: Document Sizes, Efficiency, Scratch Sizes, and more. Simply click the Info Options but-
ton, and then select from the available options. The Info panel also displays whether the image is using 8-, 16-, or 32-bit color channels.
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Chapter 2
Understanding Navigation and Measurement Systems
47
Working with Rulers
Carpenters know that precise measurements are essential to making things fit, so they have a rule: Measure Twice, Cut Once. The designers of Photoshop also know that measurements are essential and give you several measuring systems-among them are the rulers. Rulers are located on the top and left sides of the active document window, and serve several purposes. They let you measure the width and height of the active image, they let you place guides on the screen to control placement of other image elements, and they create markers that follow your cursor as you move. In addition to the rulers, you can also use the Ruler tool to measure the distance between two points by using a nonprinting line. The Options bar displays point and distance amounts and allows you to straighten or clear the line. As you can see, rulers are critical in the design of a document by helping you correctly align image elements. By using guides, you have access to precise alignment systems. To use the Ruler guides, the rulers must first be visible.
Use the Ruler Tool
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Select the Ruler tool on the toolbox . Drag from the starting point to the end point you want.
•
Create 45 Degree Lines. Hold down Shift as you drag.
•
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Create Protractor. Alt (Win) or Option (Mac) drag at an angle from one end of the line, or double-click the line and drag. Hold down Shift as you drag to create 45 degree lines.
Use any of the following to edit or remove the measuring line:
•
Resize or Move. Drag an end point of the line to resize the line, or drag the line to move it.
•
Straighten. Click the Straighten Layer button. Remove. Click the Clear button.
See Also See "Working
with Units & Rulers" on
page 68 for more information Units and Rulers preferences.
48
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Use Ruler Guides
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HorizontalRulerbar Click the View menu, and then click Rulers to display the ruler bars within the document window. Move to the vertical or horizontal Ruler bar, and then click and drag into the document. Return to the Ruler bar and continue to drag until you have all your guides properly set.
•
Click the View menu, and then click Lock Guides to lock the existing guides in place, or click Clear Guides to remove all guides .
•
Click the Move tool on the toolbox to drag existing guides to a new position (make sure Lock Guides is not selected).
Did You Know?
--
You can remove one guide at a time. Make sure Lock Guides is clear, and then click the Move tool. Drag the existing guide you want removed back to the corresponding Ruler bar. You can switch guides on the fly. If you're dragging a vertical or horizontal guide onto the document window, when in fact you wanted the opposite guide, press the Alt (Win) or Option (Mac) key, while still dragging the guide. Vertical guides become horizontal, and horizontal guides become vertical.
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See Also See "Working with Guides, Grid & Slices" on page 70 for more information on setting guide preferences.
Chapter 2
Understanding Navigation and Measurement Systems
49
Taking Measurements in an Image
If you need to measure an area in an image and track the measurement data for statistical purposes, you can use the Measurement feature (New!), formally only available in Photoshop Extended. You can measure any area defined with one of Photoshop's selection tools, Ruler tool, or Count tool. The measurement feature allows you to compute and track data points, such as width, height, area, and perimeter. Photoshop tracks the measurement data in the Measurement Log panel, which you can customize to display the information you want. Before you start measuring, it's important to set the measurement scale to specify what you want a specific number of pixels to represent in units, such as inches, millimeters, microns, or pixels. To make it easier to measure, you can place scale markers on an image to display the measurement scale.
Set Measurement Scale
o o •
Click the Image menu, point to Analysis, point to Set Measurement Scale, and then click Custom.
Measurement Presets: Pixellength:
Specify the pixel and logical length, and the logical units. To save the measurement scale as a preset, click Save Preset, type a name, and then click OK.
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Place a Scale Marker
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Click the lmaqe menu, point to Analysis, and then click Place Scale Marker.
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Enter a number for the length of the scale marker in pixels. To show the logical length and units for the scale marker, select the Display Text check box and choose specific font and font size. Click the Bottom or Top option to specify where you want the text caption. Click the Black or White option to set the scale marker and caption color. Click OK. Chapter 2
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Perform a Measurement Open a document.
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Click the Image menu, point to Analysis, point to Select Data Points, and then click Custom. Select the check boxes next to the data points you want to measure and track for the different tools.
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Ruler. Select the Ruler tool in the toolbox, and then drag the tool to measure what you want. •
Count. Select the Count tool in the tool box, and then click to count items.
Select the Measurement Log panel.
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Click the Window menu, and then click Measurement Log. Click the Image menu, point to Analysis, and then click Record Measurements to record the count to the Measurement Log.
Did You Know? You can delete a scale marker. In the Layers panel, select the Measure Scale Marker Layer group for the scale you want to delete, right-click the layer group, and then click Delete Group. You can add or replace scale markers.
Click the Image menu, point to Analysis, click Place Scale Marker, click Remove or Keep, specify settings for the new marker, and then click OK.
For Your Information Exporting Measurement Log Data After you collect the measurement data you want, you can export the Measurement Log as a tab delimited text file (.txt) that you can import into a spreadsheet or database. To export data, click the Window menu, click Measurement Log to open the panel, select one or more rows of data in the log, click the Export button at the bottom of the panel, type a file name, specify a location, and then click Save.
Chapter 2
Understanding Navigation and Measurement Systems
51
Counting Objects in an Image
If you need to count objects in an image for statistical purposes, you can use the Count tool (New!) on the toolbox, formally only available in Photoshop Extended. The Count tool allows you to manually click an image and track the number of times you do it. If you need to physically count the number of elements that appear in a photo, you can click the image to add numbers, so you don't have to remember them. After you manually count by clicking, you can record the count in the Measurement Log. The count numbers are not saved with the document. If you have multiple selections in an image, Photoshop can automatically count them and record the results in the Measurement Log panel.
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Count Objects in an Image Manually
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Open a document. Select the Count tool on the tool box. To change the color, click the Color box on the Options bar, select a color, and then click OK. Click in the image to add numbers in sequential order. To work with the numbers, do any of the following: •
Move. Drag the existing number.
•
Remove. Press Alt (Win) or Option (Mac) and click an existing number.
•
Reset. Click Clear on the Options bar to reset the count to O.
•
Show or Hide. Click the View menu, point to Show, and then click Count.
Select the Measurement Log panel. •
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Click the Window menu, and then click Measurement Log.
To record the count to the Measurement Log, click Record Measurements in the Measurement Log panel.
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Count Objects in an Image Automatically
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Select the Magic Wand tool on the tool box, or click the Select menu, and then click Color Range.
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Magic Wand. You may need to adjust the Tolerance level to select the objects you want. Color Range. You may need to set Fuzziness and choose specific colors to select the objects you want.
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Understanding Navigation and Measurement Systems
53
Creating Tool Presets
Photoshop provides you with a variety of tools to modify images. Each tool provides additional options you can choose from on the Options bar. If you frequently use the same tool with specific settings, you can save and reuse tool settings to save time in the future. You can load, edit, and create libraries of tool presets using the Tool Preset picker on the Options bar, the Tool Presets panel, or the Preset Manager.
Create and Use Tool Presets
o o
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Select the tool you want to use on the toolbox and set the options on the Options bar you want to save.
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Click the Tool Preset button arrow next to the tool on the left side of the Options bar. Click the Create New Tool Preset button. Enter a name for the tool preset, and, if available, select or deselect the Include Color check box.
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Click OK. New Tool Preset
To use the tool preset, use one of the following: •
•
Tool Preset button. Click the Tool Preset picker on the Options bar, and then select the tool preset you want.
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Tool Panel. Click the Window menu, click Tool Preset, and then select the tool preset you want. Current Tool Only
Did You Know? You can change the list of tool presets.
Click the Settings button on the Tool Preset picker, and then click the display option you want: Sort By Tool, Show All Tool Presets, Show Current Tool Presets, or Text Only,Small List, or Large List.
54
Chapter 2
Tool Fixed Ratio
Clickto sorttool presets