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`Working with the RAW Fine Tuning Controls
`You can modify how the Mac OS decodes RAW files using the adjustment controls in the RAW Fine
`Tuning area of the Adjustments inspector or the Adjustments pane of the Inspector HUD. The Mac OS
`characterizes the RAW file format for each digital camera supported by Aperture. This calibration data
`usually results in the optimal decoding of the RAW image files for a particular camera. However, certain
`types of images may require adjustments to how the Mac OS decodes the RAW image file.
`The RAW Fine Tuning controls include the following parameters:
`Boost: Use the Boost and Hue Boost sliders and value sliders to control image contrast.
`For more information, see “Using the Boost Controls.”
`Sharpening: Use the Sharpening and Edges sliders and value sliders to fine-tune the amount of
`sharpening you want applied to images during the RAW decoding process.
`For more information, see “Using the Sharpening Controls.”
`Moire: Use the Moire and Radius sliders and value sliders to correct color fringing in high-contrast
`edges and the moire pattern effect found in images with subjects whose linear patterns introduce the
`effect, such as a brick wall or a picket fence.
`For more information, see “Using the Moire Controls.”
`Auto Noise Compensation: Select this checkbox to turn on additional adjustments, such as noise
`reduction and stuck pixel removal, that are automatically applied to the image.
`For more information, see “Turning On Automatic Noise-Compensation Adjustments.”
`
`Note: Some controls in the RAW Fine Tuning area of the Adjustments inspector and the Adjustments
`pane of the Inspector HUD appear dimmed if these settings are not available for use with images derived
`from a particular RAW file format. Some camera models can create multiple types of RAW file formats,
`and different controls may be available for each of these RAW file formats.
`Using these controls, you can fine-tune your RAW decoding settings on an image-by-image basis.
`Aperture also enables you to save your customized RAW decoding settings as presets or as the default
`settings always used with a specific camera, so they are easily applied to newly imported images. For
`more information about saving your custom RAW Fine Tuning settings as the default for a specific
`camera, see “Setting the Camera Default.”
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`If the RAW Fine Tuning controls do not appear, the selected image is from a previous version of
`Aperture. You must first reprocess the image using Aperture 3 image processing. For more information,
`see “Reprocessing Images from Previous Versions of Aperture.”
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Using the Boost Controls
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`9/28/21 12:48 PM
`
`Using the Boost Controls
`The Mac OS characterizes each digital camera’s RAW file format to determine an optimal contrast setting.
`The Boost controls allow you to set the strength of the contrast when the RAW file is decoded. The Hue
`Boost controls are used to maintain the hues in the image as the contrast is increased using the Boost
`controls. When the Hue Boost parameter is set to 1.00 and the Boost parameter is set to 1.00, the hues
`of the primary and secondary colors are pinned to their pure color values, resulting in a shift of all the
`hues in the image. For images that consist of saturated primary and secondary colors, such as an image
`of flowers in a lush garden, shifting the hues to their true values has a desirable visual effect. However,
`this is not visually desirable for images containing skin tones. Shifting the hues most often causes the
`skin to appear yellow. Setting the Hue Boost parameter to 0.00 increases the color contrast in the image
`while preserving the original hues in the image.
`To adjust the Boost parameters
`1. Select a RAW image imported with or reprocessed using Aperture 3 image processing.
`Note: If the RAW Fine Tuning controls do not appear in the Adjustments inspector or the Adjustments
`pane of the Inspector HUD, the selected image is from a previous version of Aperture. You must first
`reprocess the image using Aperture 3 image processing. For more information, see “Reprocessing
`Images from Previous Versions of Aperture.”
`2. In the Adjustments inspector or the Adjustments pane of the Inspector HUD, adjust the Boost parameter
`by doing one of the following:
`By default, the Boost slider is set to 1.00. Drag the Boost slider to the left to decrease the amount of
`contrast applied to the image during the RAW decoding process, and drag the Boost slider back to the
`right to increase the contrast.
`Click the left or right arrow in the Boost value slider to adjust the contrast by 5 percent increments, or
`drag in the value field.
`Double-click the number in the Boost value slider, then enter a value from 0.00 to 1.00 and press
`Return.
`
`A value of 0.00 applies no contrast adjustment to the image during the RAW decoding process. A value
`greater than 0.00 increases the contrast adjustment to the image. A value of 1.00 applies the full Apple-
`recommended contrast adjustment for the specific camera model.
`3. Adjust the Hue Boost parameter by doing one of the following:
`By default, the Hue Boost slider is set to 1.00. Drag the Hue Boost slider to the left to preserve the
`accuracy of the hues, and drag the Hue Boost slider back to the right to allow the hues to shift during
`the RAW decoding process.
`Click the left or right arrow in the Hue Boost value slider to adjust the accuracy of the hues by 5
`percent increments, or drag in the value field.
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`Double-click the number in the Hue Boost value slider, then enter a value from 0.00 to 1.00 and press
`Return.
`
`A value of 0.00 preserves the original hues in the image in relation to the Boost adjustment (color
`contrast) during the RAW decoding process. A value greater than 0.00 increases the hue adjustment to
`the image. A value of 1.00 applies the full Apple-recommended hue adjustment for the specific camera
`model.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Using the Sharpening Controls
`
`9/28/21 12:48 PM
`
`Using the Sharpening Controls
`You can adjust sharpening during the RAW decoding process by using the RAW Fine Tuning Sharpening
`controls in the Adjustments inspector or the Adjustments pane of the Inspector HUD.
`Note: The effect of sharpening an image or group of images using the RAW Fine Tuning adjustment is
`very subtle. More sharpening effects can be obtained using the Edge Sharpen adjustment. For more
`information about the Edge Sharpen adjustment, see “Working with the Edge Sharpen Controls.”
`To adjust the sharpening applied during the RAW decoding process
`1. Select a RAW image imported with or reprocessed using Aperture 3 image processing.
`Note: If the RAW Fine Tuning controls do not appear in the Adjustments inspector or the Adjustments
`pane of the Inspector HUD, the selected image is from a previous version of Aperture. You must first
`reprocess the image using Aperture 3 image processing. For more information, see “Reprocessing
`Images from Previous Versions of Aperture.”
`2. Adjust the strength of the sharpening effect by doing one of the following:
`The default value for the Sharpening slider and value slider is determined by the camera used to
`create the RAW image file. Drag the Sharpening slider to the right to increase the strength of the
`sharpening effect applied during the RAW decoding process, and drag the Sharpening slider back to
`the left to reduce the sharpening effect.
`Click the left or right arrow in the Sharpening value slider to adjust the strength of the sharpening
`effect by 5 percent increments, or drag in the value field.
`Double-click the number in the Sharpening value slider, then enter a value from 0.00 to 1.00 and
`press Return.
`
`A value of 0.00 applies no sharpening effect to the image during the RAW decoding process. A value
`greater than 0.00 increases the sharpening effect to the image.
`3. Adjust how the sharpening effect is applied to edges by doing one of the following:
`The default value for the Edges slider and value slider is determined by the camera used to create the
`RAW image file. Drag the Edges slider to the right to intensify the sharpening effect that occurs at
`“hard” edges (areas where significant color changes occur) during the RAW decoding process, and
`drag the Edges slider back to the left to limit the sharpening effect.
`Click the left or right arrow in the Edges value slider to adjust the strength of the sharpening effect
`that occurs at hard edges by 5 percent increments, or drag in the value field.
`Double-click the number in the Edges value slider, then enter a value from 0.00 to 1.00 and press
`Return.
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`A value greater than 0.00 intensifies the sharpening effect on hard edges.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Using the Moire Controls
`
`9/28/21 12:49 PM
`
`Using the Moire Controls
`Digital images often have color artifacts that appear around edges and lines because of noise created by
`digital image sensors. Images whose subjects have linear patterns often introduce a moire pattern that
`gives the subject a wrinkled or rainbow-colored appearance. In addition, cameras with image sensors
`employing Bayer patterns often introduce noise into monochromatic images. The Moire adjustment
`controls in the RAW Fine Tuning area of the Adjustments inspector or the Adjustments pane of the
`Inspector HUD identify these patterns and correct these artifacts.
`
`Because many digital cameras have weak anti-aliasing filters, the Moire and Radius parameters are
`specifically used to correct aliasing in an image caused by edges with high color contrast. Weak anti-
`aliasing filters tend to curve edges, skewing the colors in the process. During the RAW decoding process,
`the Mac OS scans for high-frequency information in the RAW file, looking for blended colors, and then
`replaces the blended colors with the edge colors that originally existed in the scene. The Moire
`parameter adjusts the amount of signal to apply the adjustment to. The Radius parameter adjusts the
`pixel area (visual threshold) the adjustment is applied to.
`Note: The Moire controls replace the Chroma Blur controls found in previous versions of Aperture.
`To adjust the Moire and Radius parameters
`1. Select a RAW image imported with or reprocessed using Aperture 3 image processing.
`Note: If the RAW Fine Tuning controls do not appear in the Adjustments inspector or the Adjustments
`pane of the Inspector HUD, the selected image is from a previous version of Aperture. You must first
`reprocess the image using Aperture 3 image processing. For more information, see “Reprocessing
`Images from Previous Versions of Aperture.”
`2. Adjust the amount of signal to apply the Moire adjustment to by doing one of the following:
`The default value for the Moire slider and value slider is 0.00. Drag the Moire slider to the right to
`increase the amount of signal the Moire adjustment is applied to during the RAW decoding process,
`and drag the Moire slider back to the left to reduce it.
`Click the left or right arrow in the Moire value slider to adjust the intensity by 5 percent increments, or
`drag in the value field.
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`Aperture 3 User Manual: Using the Moire Controls
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`Double-click the number in the Moire value slider, then enter a value from 0.00 to 1.00 and press
`Return.
`
`A value of 0.00 applies no moire correction during the RAW decoding process. A value greater than 0.00
`applies moire correction during the RAW decoding process.
`3. Adjust the pixel area (visual threshold) the Moire adjustment is applied to by doing one of the following:
`The default value for the Radius slider and value slider is 4.00 pixels. Drag the Radius slider to the
`right to increase the area over which the Moire adjustment is applied during the RAW decoding
`process, and drag the Radius slider back to the left to reduce the area.
`Click the left or right arrow in the Moire value slider to adjust the radius by 10 percent increments, or
`drag in the value field.
`Double-click the number in the Radius value slider, then enter a value from 0.10 to 25.00 and press
`Return.
`
`A value of 0.10 is the most limited area over which the moire correction can be applied during the RAW
`decoding process. A value greater than 0.10 increases the area over which the moire correction is
`applied during the RAW decoding process.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Turning On Automatic Noise-Compensation Adjustments
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`9/28/21 12:49 PM
`
`Turning On Automatic Noise-Compensation Adjustments
`Digital image sensors produce noisy images at certain settings (generally high ISO settings and long
`exposures). The Mac OS analyzes the noise characteristics of each camera’s RAW file format and uses
`them to control parameters such as sharpness. You can turn on the automatic adjustment by selecting
`the Auto Noise Compensation checkbox.
`To turn on the automatic noise-compensation adjustment
`1. Select a RAW image imported with or reprocessed using Aperture 3 image processing.
`Note: If the RAW Fine Tuning controls do not appear in the Adjustments inspector or the Adjustments
`pane of the Inspector HUD, the selected image is from a previous version of Aperture. You must first
`reprocess the image using Aperture 3 image processing. For more information, see “Reprocessing
`Images from Previous Versions of Aperture.”
`2. In the RAW Fine Tuning area of the Adjustments inspector or the Adjustments pane of the Inspector
`HUD, select the Auto Noise Compensation checkbox.
`
`Aperture applies the automatic noise-compensation adjustment during the RAW decoding process.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Working with DNG Files
`
`9/28/21 12:49 PM
`
`Working with DNG Files
`In Aperture, you can adjust how the Mac OS decodes RAW images in the DNG format. If the digital
`camera that captured an image is supported by Aperture, the calibration data for that camera is used to
`decode the RAW file in the same manner as if it were decoded from the RAW file format itself. If the DNG
`file is from an unsupported camera, Aperture uses the camera information stored in the DNG file to
`decode the image.
`To adjust the RAW Fine Tuning parameters of a DNG file
`1. Select a DNG file imported with or reprocessed using Aperture 3 image processing.
`Note: If the RAW Fine Tuning controls do not appear in the Adjustments inspector or the Adjustments
`pane of the Inspector HUD, the selected image is from a previous version of Aperture. You must first
`reprocess the image using Aperture 3 image processing. For more information, see “Reprocessing
`Images from Previous Versions of Aperture.”
`2. Adjust the RAW Fine Tuning parameters as necessary for the image.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Setting the Camera Default
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`9/28/21 12:49 PM
`
`Setting the Camera Default
`When you’ve modified the RAW decoding settings using the controls in the RAW Fine Tuning area of the
`Adjustments inspector or the Adjustments pane of the Inspector HUD, you can save these settings as the
`default parameter values for the camera model. All RAW image files from this camera model that are
`imported into Aperture are decoded using these saved settings.
`
`To set the camera default
`1. In the RAW Fine Tuning area of the Adjustments inspector or the Adjustments pane of the Inspector
`HUD, choose Save as Camera Default from the Action pop-up menu (with a gear icon) for the RAW Fine
`Tuning adjustment.
`
`The RAW Fine Tuning Adjustment Presets dialog appears.
`2. Enter a name for the preset and click OK.
`The Action pop-up menu for the RAW Fine Tuning adjustment displays the preset’s name with a
`checkmark next to it.
`You can always clear the saved camera default settings. To remove a RAW Fine Tuning adjustment preset
`from the list of camera default settings, you have to delete it.
`To clear the camera default settings
`1. In the RAW Fine Tuning area of the Adjustments inspector or the Adjustments pane of the Inspector
`HUD, choose Apple from the Action pop-up menu (with a gear icon) to make it the camera default
`setting, then choose Edit Presets from the Action pop-up menu.
`The RAW Fine Tuning Adjustment Presets dialog appears.
`2. Select the RAW Fine Tuning preset you want to remove, then press the Delete key.
`3. In the dialog that appears, click the Delete Adjustment Presets button.
`The adjustment preset is removed from the RAW Fine Tuning Adjustment Presets dialog, and the
`adjustment preset no longer appears in the RAW Fine Tuning Action pop-up menu.
`You can also set the RAW Fine Tuning controls to use the Apple-recommended RAW decoding settings.
`To use the Apple-recommended camera default settings
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`In the RAW Fine Tuning area of the Adjustments inspector or the Adjustments pane of the Inspector
`HUD, choose Apple from the Action pop-up menu (with a gear icon).
`A checkmark appears next to Apple in the Action pop-up menu.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Understanding How to Read Histograms
`
`9/28/21 12:49 PM
`
`Understanding How to Read Histograms
`The histogram is a graph that displays relative brightness in an image, from pure black to pure white.
`The area under the graph represents all the pixels in the image. From left to right, the histogram
`describes the range of dark pixels (shadows), gray pixels (midtones), and bright pixels (highlights) in the
`image. The shape of the histogram graph depends on the tonality of the scene and the exposure.
`
`A histogram can also be used as a tool to evaluate whether or not there is enough shadow, midtone, and
`highlight information in the image. Aperture provides three histograms in the Adjustments inspector and
`the Adjustments pane of the Inspector HUD. The histogram above the adjustment controls indicates the
`current state of the image. The Levels histogram included with the Levels adjustment controls provides a
`way to adjust the brightness values in the image in relation to the displayed histogram. You use the
`Levels controls to adjust the shadow, dark quarter-tone, midtone, light quarter-tone, and highlight
`values independently of each other without affecting the other areas of the image. The Curves histogram
`included with the Curves adjustment controls provides a way to adjust the tonal values in the image in
`relation to the displayed histogram. You use the Curves controls to adjust the full range of tonal values
`independently of each other without affecting the other areas of the image.
`For more information about performing Levels adjustment, see “Working with the Levels Controls.” For
`more information about performing Curves adjustment, see “Working with the Curves Controls.”
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Evaluating Exposure
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`9/28/21 12:49 PM
`
`Evaluating Exposure
`Histograms are good tools for evaluating exposure. For example, a series of peaks in the darker side of
`the histogram often indicates an underexposed image that consists mainly of dark pixels.
`
`A series of peaks in the center of the histogram often indicates a balanced exposure because a majority
`of the pixels are concentrated within the midtones of the histogram. They’re not too dark or too bright.
`
`However, a series of peaks in the brighter side of the histogram often indicates an overexposed image
`because most of the pixels in the image are too bright.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Evaluating Tonality and Contrast
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`9/28/21 12:49 PM
`
`Evaluating Tonality and Contrast
`Although histogram graphs are good tools for evaluating an image’s exposure, you shouldn’t interpret
`histograms for exposure information only, because the shape of the histogram is also influenced by the
`tonality in the scene. You need to take the subject of the image into account when evaluating its
`histogram. For example, images shot at night are naturally going to have a majority of peaks in the
`darker side of the histogram.
`
`Likewise, images of bright scenes, such as snow or light reflecting off the ocean, have a majority of their
`peaks in the brighter side of the histogram.
`
`Histograms can also depict contrast in an image. For example, this silhouette of the man in the
`hammock in front of the sunset consists of a relatively even assortment of extreme bright and dark tonal
`values with few midtones. In this case, the histogram is shaped like a valley with peaks in both the dark
`and bright sides.
`
`Likewise, histograms can also depict a lack of contrast in an image. For example, an image of a rainbow
`in the fog lacks contrast. Without directional lighting, there aren’t any highlights or shadows in the
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`image. In this case, the peaks of the histogram are concentrated in the center and do not come close to
`either the dark or bright sides.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: About Making Adjustments Onscreen
`
`9/28/21 12:49 PM
`
`About Making Adjustments Onscreen
`Human eyes perceive color subjectively. It’s difficult to make objective changes to the colors in an image
`because the brain is so advanced that it skews the perception of colors to make them appear as natural
`as possible. For this reason, it is essential that you create the best possible work environment for
`performing color adjustments. Such an environment excludes extraneous colors that have the potential
`to throw off your eye.
`
`Creating a Good Work Environment
`Before you begin making color adjustments to your images, it’s important to pay attention to the
`following:
`Set your display to its highest-resolution setting. This will give you the best view of your image.
`Make sure you are employing good color management. This means that your displays and printers
`are calibrated and their profiles are up to date. For more information about calibrating and
`profiling your Aperture system, see “Calibrating Your Aperture System.”
`Reduce the ambient light in the room you are working in to prevent the light from skewing your
`perception of the colors on your screens, and make sure your displays are set to their brightest
`levels.
`If possible, paint the walls in the room in which you perform detailed image adjustments a neutral
`gray. Keep bright-colored objects to a minimum to ensure that the colors on your screens are not
`altered by the color in the rest of the room.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Making Image Adjustments
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`9/28/21 12:50 PM
`
`Making Image Adjustments
`You use adjustment controls when you want to perfect an image. The type of adjustment control you use
`depends on the aspect of the image you are trying to change.
`
`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Working with the Retouch Controls
`
`9/28/21 12:50 PM
`
`Working with the Retouch Controls
`You use the Retouch brushes to touch up imperfections in the image caused by sensor dust, image
`artifacts, and other environmental conditions. You can also copy an element of an image and paste it in
`another area for purely aesthetic reasons. Aperture provides two methods for retouching your images.
`The method you use depends on whether you are trying to copy texture from the source while
`preserving hard edges at the destination (where the blemish is) or simply copy pixels from one area of
`the image and replace them over another.
`If the area you need to repair has a hard edge near the problem area, you use the “repair” method. You
`also use the repair method when you want to copy high-frequency texture from one area of the image
`(the source) and brush the texture over the destination area while maintaining the underlying color and
`shading of the destination area.
`The second method, “cloning,” is used when you simply want to copy pixels from one area and paste
`them on another area. Cloning is useful when you want to copy an element of an image as is (a cloud, for
`example) and paste it in another area.
`
`Which Retouching Adjustment Should You Use?
`Aperture provides two sets of controls that you can use to retouch your image: Retouch and Spot &
`Patch.
`In the vast majority of cases, Retouch provides the controls that will best serve your image-repair
`needs. The Spot & Patch controls have been included in Aperture 3 in order to retain the integrity of
`images that were adjusted with earlier versions of Aperture. In many cases, image repairs might even
`be improved by removing an existing Spot & Patch repair and replacing it with a Repair or Clone
`adjustment performed with the Retouch tool.
`There are certain situations in which Spot & Patch is the adjustment of choice. For example, an
`artifact on or very near a curved edge in an image may be more effectively removed using the Angle
`parameter. For more information about the Spot & Patch adjustment controls, see “Working with the
`Spot & Patch Controls.”
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`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Repairing Your Images
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`9/28/21 12:50 PM
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`Repairing Your Images
`You use the Repair brush of the Retouch adjustment when the area surrounding the blemish has
`elements of high contrast, such as an edge, or when you need to copy texture from the source area and
`maintain the color and shading in the destination area.
`
`To retouch an image using the Repair brush
`1. Select an image.
`2. It’s a good idea to set the image to appear at full size (100 percent) to prevent image scaling from
`obscuring details. To display images at full size, click the Zoom Viewer button in the tool strip or the Full
`Screen view toolbar (or press Z).
`3. Choose Retouch from the Quick Brush pop-up menu (with a brush icon) in the tool strip or the Full
`Screen view toolbar (or press X).
`The pointer changes to a brush, and the Retouch HUD appears.
`
`4. In the Retouch HUD, do the following:
`a. Click the Repair button.
`b. Set the radius of the brush by dragging the Radius slider, entering a value in the Radius value slider,
`or using your mouse’s scroll wheel.
`Note: The mouse’s scroll wheel is disengaged when the pointer is placed over the Retouch HUD.
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`c. Set the softness of the brush by dragging the Softness slider or entering a value in the Softness value
`slider.
`d. Set the opacity of the brush by dragging the Opacity slider or entering a value in the Opacity value
`slider.
`5. If you want the Retouch adjustment to preserve edge details in the image, select the “Detect edges”
`checkbox.
`6. If you need to copy pixels from another area of the image, deselect the “Automatically choose source”
`checkbox, and Option-click the source area.
`7. Brush over the area with the imperfection.
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`Copyright © 2009 Apple Inc. All rights reserved.
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`Aperture 3 User Manual: Cloning Your Images
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`Cloning Your Images
`You use the Clone brush of the Retouch adjustment to copy pixels from an area of the image with similar
`visual elements and paste the pixels over the area with the imperfection. No pixels are blended from the
`area surrounding the brush stroke.
`
`To retouch an image using the Clone brush
`1. Select an image.
`2. It’s a good idea to set the image to appear at full size (100 percent) to prevent image scaling from
`obscuring details. To display images at full size, click the Zoom Viewer button in the tool strip or the Full
`Screen view toolbar (or press Z).
`3. Choose Retouch from the Quick Brush pop-up menu (with a brush icon) in the tool strip or the Full
`Screen view toolbar (or press X).
`The pointer changes to a brush, and the Retouch HUD appears.
`
`4. In the Retouch HUD, do the following:
`a. Click the Clone button.
`b. Set the radius of the brush by dragging the Radius slider or entering a value in the Radius value slider.
`c. Set the softness of the brush by dragging the Softness slider or entering a value in the Softness value
`slider.
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`d. Set the opacity of the brush by dragging the Op