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- 1. Done by: RaqayaAl_Busaidi ID: 90535
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- 3. Instruction Action buttons: To moveback To move forward To move to home slide
- 5. Introduction As you workwith Adobe Photoshop, you’ll discover that there is often more than one way to accomplish the same task. To make the best use of the extensive editing capabilities in these programs, you first must learn to navigate the work area.
- 6. Lessons Working with Selections Masksand Channels Adobe Basic Photo Corrections
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- 9. Overview Learning how toselect areas of an image is of primary importance— you must first select what you want to affect. Once you’ve made a selection, only the area within the selection can be edited. Areas outside the selection are protected from change.
- 10. Sections section1: Practicing makingselection section2: Moving selection contents section3:Selecting with the magic wand tool
- 11. section1: Practicing makingselections In this section, you’ll experiment with making selections before you begin working in earnest on your sample files. By working with the tools in a practice session, you’ll understand better how the basic tools work and how to use them. You’ll A C B D also learn about selecting and moving as a twostep process. In Photoshop, you first select the part of an image you want to move with one of the selection tools. After you select it, you can then A. Marquee tool B. Move tool C. Lasso tool D. Magic wand tool use another tool to move the selected pixels to another location. sections
- 12. section1: Practicing makingselection 1.1: Selecting and deselecting an area of an image. 1.2: Repositioning a selection border while creating it.
- 13. 1.1: Selecting anddeselecting an area of an image. You’ll start practicing selection techniques using the rectangular marquee tool. 1. In the toolbox, select the rectangular marquee tool. 2. Drag diagonally from the upper left corner to the lower right corner of the book to create a rectangular selection. You can move a selection border after you’ve drawn it.
- 14. 3. Drag from thebook to a different area of the image window. Note: Repositioning techniques for selection borders work with any of the marquee, lasso, and magic wand tools. 4. Choose Edit > Deselect. Or, you can deselect by clicking another area in the window, outside the selection border.
- 15. 1.2: Repositioning aselection border while creating it. 1. Select the zoom tool, and click the black oval on the right side of the image window as needed to zoom in to at least 100% view. 2. Select the elliptical marquee tool hidden under the rectangular marquee tool.
- 16. 3. Move the pointerover the oval, and drag diagonally across the oval to create a selection. 4. Still holding down the mouse button, hold down the spacebar on your keyboard and drag the selection.
- 17. 5. Carefully release thespacebar, and continue to drag, trying to make the size and shape of the selection match the oval as closely as possible. 6. When the selection border is positioned and sized correctly, release the mouse button.
- 18. section2: Moving selectioncontents Now that you’ve had some experience with a couple of methods of making selections, you’re ready to start using selections to make changes in your image. In the previous procedures, you made selections with various tools and used different keyboard combinations to help you make them, but you did not change the image. sections
- 19. section2: Moving selectioncontents 2.1: Selecting from a center point. 2.2: Moving and changing the pixels in a selection. 2.3: Moving and duplicating simultaneously.
- 20. 2.1: Selecting froma center point. 1. In the toolbox, select the zoom tool. 2. Scroll to the globe in the lower left area of the image, and click the zoom tool to increase the magnification to about 300%. 3. In the toolbox, select the elliptical marquee too. 4. Move the pointer to the approximate center of the globe.
- 21. 5. Click and begindragging. Then without releasing the mouse button, hold down Alt (Windows) or Option (Mac OS) and continue dragging the selection to the outer edge of the globe. 6. When you have the entire globe selected, release the mouse button first and then release Alt or Option (and the Shift key, if you used it, too).
- 22. 2.2: Moving andchanging the pixels in a selection. 1. Choose View > Fit on Screen to adjust the magnification so that the entire image fits within the image window. 2. In the toolbox, select the move tool. Notice that the globe remains selected. 3. Position the pointer within the globe selection.
- 23. 4. Drag theglobe above the book image, somewhat close to the right edge. 5. Choose Image > Adjustments > Invert. The colors making up the globe are inverted, so that it is now effectively a color negative the original.
- 24. 2.3: Moving andduplicating simultaneously. 1. Using the move tool, hold down Alt (Windows) or Option (Mac OS), and position the pointer within the globe selection. 2. Continue holding down Alt or Option, and drag a duplicate of the globe down and to the right. Release the mouse button and Alt or Option, but do not deselect the duplicate globe.
- 25. 3. Choose Edit >Transform > Scale to activate a bounding box around the selection. 4. Hold down Shift and drag one of the corner points to enlarge the globe so that it is larger than the original by about half. Then press Enter to commit the transformation and hide the bounding box.
- 26. 5. Hold down Shift+Alt(Windows) or Shift+Option (Mac OS), and drag a new copy of the second globe down and to the right. 6. Repeat steps 3 and 4 for the third globe, making it about twice the size of the first one. 7. When you are satisfied with the size and position of the third globe, choose Select > Deselect, and then choose File > Save.
- 27. section3:Selecting with themagic wand tool 1. Select the magic wand tool. 2. In the tool options bar, enter 70 in the Tolerance text box to increase the number of similar tones that will be selected. 3. Using the magic wand tool, click what looks like the surface of the large number ―5‖ image. sections
- 28. 4. To selectthe remaining area of the number ―5,‖ hold down Shift, so that a plus sign appears with the magic wand pointer, indicating that whatever you click will be added to the current selection. Then click one of the unselected areas of the blue number ―5.‖ Initial selection Adding to selection Complete selection (Shift key depressed)
- 29. 5. Continue addingto the selection until all the blue areas are selected. 6. With all of the ―5‖ selected, hold down Ctrl (Windows) or Command (Mac OS) and drag the number to the area to the upper left of the book image. 7. Choose Select > Deselect.
- 30. practice Use lasso toolto select the pen and change the position of the pen. lessons
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- 32. Masks and ChannelsAdobe Overview Sections practice
- 33. Overview Adobe Photoshop usesmasks to isolate and manipulate specific parts of an image. A mask is like a stencil. The cutout portion of the mask can be altered, but the area surrounding the cutout is protected from change. You can create a temporary mask for one-time use, or you can save masks for repeated use
- 34. Sections Section1: Creating aquick mask Section2: Editing a quick mask Section3: Creating a gradient mask
- 35. Section1: Creating aquick mask 1. Select the magic wand tool. 2. In the tool options bar, enter 12 in the Tolerance text box. 3. Click anywhere in the white area of the egret to begin the selection process. 4. To extend the selection, hold down Shift and click the magic wand on another white portion of the egret. Magic wand selection Selection extended sections
- 36. 5. Select theQuick Mask mode button in the toolbox. By default, you have been working in Standard mode. A. Standard mode B. Quick Mask mode Quick mask selection showing red overlay
- 37. Section2: Editing aquick mask Next, you will refine the selection of the egret by adding to or erasing parts of the masked area. You’ll use the brush tool to make changes to your quick mask. The advantage of editing your selection as a mask is that you can use almost any tool or filter to modify the mask. (You can even use selection tools.) In Quick Mask mode, you do all of your editing in the image window. sections
- 38. 1. To makethe foreground color white, select the Switch Foreground and Background Colors icon above the foreground and background color-selection boxes. 2. Select the zoom tool and magnify your view of the image, if needed. 3. Select the brush tool.
- 39. 4. In thetool options bar, make sure that the mode is Normal. Then click the arrow to display the Brushes pop-up palette, and select a medium-sized brush, such as one with a diameter of 13 pixels. 5. Using the brush tool, begin painting over the red areas within the egret’s body. As you paint with white, the red areas are erased. Unedited mask Painting with white Result
- 40. 6. Continue paintingwith white to erase all of the mask (red) in the egret, including its beak and legs. Standard mode Edited mask in Standard mode Quick mask selection 7. Once you’ve erased all of the red areas within the egret, click the Standard mode icon again to view your quick mask as a selection. 8. If necessary, zoom out so that you can see the entire image.
- 41. Section3: Creating agradient mask 1. In the Channels palette, create a new channel by clicking the New Channel button at the bottom of the palette. 2. Double-click the Alpha 1 channel and type Gradient to rename it. 3. Select the gradient tool. sections
- 42. 4. In thetool options bar, click the arrow to display the Gradients picker and select the Black, White gradient. 5. Hold down Shift to keep the gradient vertical, and drag the gradient tool from the top of the image window to the bottom of the window.
- 43. practice Extract the objectfrom its background for this picture. lessons
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- 46. Overview Adobe Photoshop includesa variety of tools and commands for improving the quality of a photographic image. This lesson steps you through the process of acquiring, resizing, and retouching a photo intended for a print layout. The same workflow applies to Web images.
- 47. Sections Section1: Straightening andcropping an image Section2: Replacing colors in an image Section3: Adjusting lightness with the dodge tool
- 48. Section1: Straightening andcropping an image 1. select the crop tool. Then, in the tool options ensions (in inches) of the finished image: For Width, type 2 and for Height type 3. 2. Draw a marquee around the image. As you drag, the marquee retains the same proportion as the dimensions you specified for the target size (2 x 3). sections
- 49. 3. In thetool options bar, make sure that the Perspective check box is not selected. 4. In the image window, move the pointer outside the crop marquee, so that it appears as a curved double arrow. Drag clockwise to rotate the marquee until it is parallel with the edges of the pictured window frame.
- 50. 5. Place thepointer inside the crop marquee, and drag the marquee until it contains all the parts of the picture you want shown to produce an artistically pleasing result. If you also want to adjust the size of the marquee, drag one of the corner handles. Initial crop marquee Marquee rotated Marquee moved Marquee resized
- 51. 6. Press Enter.The image is now cropped, and the cropped image now fills the image window, straightened, sized, and cropped according to your specifications. Image cropped
- 52. Section2: Replacing colorsin an image 1. Select the rectangular marquee tool, and draw a selection border around the blue wall at the top of the image. 2. Choose Image > Adjustments > Replace Color to open the Replace Color dialog box. By default, the Selection area of the Replace Color dialog box displays a black rectangle, representing the current selection. sections
- 53. A. Single-color eyedroppertool B. Eyedropper plus tool C. Eyedropper minus tool A B C 3. Select the first (single-color) eyedropper tool in the Replace Color dialog box and click anywhere in the blue-wall area of the image window to select all of the area with that color.
- 54. 4. In theReplace Color dialog box, select the eyedropper-plus tool, and drag over the other areas of the blue wall until the entire wall shape is highlighted in white in the dialog box. 5. Adjust the tolerance level of the mask by dragging the Fuzziness slider or typing 80.
- 55. 6. If thereare any white areas of the mask display in the dialog box that are not part of the wall, select the eyedropper-minus tool and click in the black area around the selection in the Replace Color dialog box to remove most of the white.
- 56. 7. In theTransform area of the Replace Color dialog box, drag the Hue slider to –40, the Saturation slider to –45, and the Lightness slider to 0. 8. Click OK to apply the changes.
- 57. Section3: Replacing colorsin an image 1. In the toolbox, select the dodge tool. 2. In the tool options bar, select the following settings: For Brush, select a fairly large feathered brush on the Brush pop up palette, such as 27. Then click outside the palette to close it. In the Range pop-up menu, select Highlights. For Exposure, type or use the pop-up slider to enter 15%. sections
- 58. 3. Using verticalstrokes, drag the dodge tool over the window curtains to bring out the details. You don’t always need to use vertical strokes with the dodge tool, but they work well with this particular image. If you make a mistake or don’t like the results, choose Edit > Undo and try again until you are satisfied with the results. Original Result
- 59. practice Adjusting saturation forthis picture with the sponge tool lessons
- 60. Quiz 1. Once you’vemade a selection, what area of the image can be edited? Review the answer
- 61. 2. How doyou add to and subtract from a selection? Review the answer
- 62. 3. What isthe benefit of using a quick mask? Review the answer
- 63. 4. What happensto a quick mask when you deselect it? Review the answer
- 64. 5. What doesresolution mean? Review the answer
- 65. 6. How canyou use the crop tool in photo retouching? Review the answer
- 66. 1. Only thearea within the selection can be edited. Back
- 67. 2. To addto a selection, hold down Shift, and then drag or click the active selection tool on the area you want to add to the selection. To subtract from a selection, hold down Alt (Windows) or Option (Mac OS), and then drag or click the active selection tool on the area you want to remove from the selection. Back
- 68. 3. Quick masksare helpful for creating quick, one-time selections. In addition, using a quick mask is an easy way to edit a selection using the painting tools. Back
- 69. 4. The quickmask disappears when you deselect it. Back
- 70. 5. The termresolution refers to the number of pixels that describe an image and establish its detail. The three different types of resolution include image resolution, measured in pixels per inch (ppi); monitor resolution, measured in dots per inch (dpi); and printer or output resolution, measured in ink dots per inch. Back
- 71. 6. can usethe crop tool to trim, scale, and straighten an image. Back