Tài liệu Photoshop cs5 by Dayley part 67 pps

FIGURE 15.8 When the Spot Healing Brush works, it’s almost impossible to tell that your image ever had a blemish.. The Healing Brush The Healing Brush tool works very similarly to the Sp

8 Undo and then use the Spot Healing Brush several times over and over to see

sev-eral different results

You probably see a different result every time In other words, if at first you don’t succeed….

9 Make a second pass and even more if necessary

Sometimes making two or three passes cleans up edges left by the initial pass If the Spot Healing Brush worked, you should get results similar to Figure 15.8

FIGURE 15.8

When the Spot Healing Brush works, it’s almost impossible to tell that your image ever had a blemish

If you don’t get the results that you want, you can move on to the more advanced tools

The Healing Brush

The Healing Brush tool works very similarly to the Spot Healing Brush tool, with the added feature that you get to set the sample point—choose the area where the fix comes from For instance, Figure 15.9 could be a fantastic silhouette if the light poles in the background could be removed

As I patch over the areas where the light poles are, I want the patched areas of the sky to follow the gradient created by the setting sun rather than having the splotchy fix that would be created by the Spot Healing Brush The Clone Stamp also would leave splotchy, unblended areas The Healing Brush is the perfect tool

FIGURE 15.9

Although you can’t tell in black and white, this sky is a soft gradient blending from orange to blue The

Healing Brush is the best option for blending the light poles out of this image

Follow along to use the Healing Brush to correct this image:

On the Web Site

Use Figure 15-9 to follow along with this exercise n

1 Open an image in need of the Healing Brush tool to correct it.

If necessary, change the background to a layer by double-clicking and renaming it.

Tip

Mask out the silhouette so you are not accidentally blending in the dark pixels as you work on the light poles

that intersect with it Be sure to lock the transparent pixels so they won’t be smudged or added to the rest of

the image n

2 Select the Healing Brush from the Toolbox, or type J (Shift+J to toggle to it if it is

nested behind another tool).

3 Select a brush size from the options bar.

4 Alt/Option-click to set the sample point.

In Figure 15.10, the crosshair shows that I have chosen the clean line of sky between the

light poles You can reset the sample point as many times as you need to throughout the healing process by repeating this step

5 Drag over areas that you want to be healed, as shown in Figure 15.10

Unlike the Spot Healing Brush, you can make several passes to completely cover an area

if you need to As you drag, notice that the sample point moves along with your cursor, sampling areas in line with what you need to heal If you have the Aligned option dese-lected, releasing the mouse returns the sample point to the original starting point If Aligned is selected, the sample point remains the exact same distance from your Healing Brush tool, no matter how many times you release your mouse

FIGURE 15.10

Set the sample point by Alt/Option-clicking The sample point follows your cursor as you drag the Healing Brush

6 Make as many passes as necessary to clean up any dark pixels left by residue from

the light poles

When you are finished, your photo should look like Figure 15.11.

Tip

I noticed that the darker light poles were more difficult to get a clean fix on in the first pass I used the Clone

Stamp to remove the dark pixels entirely in these areas and then used the Healing Brush to blend the pixels n

Instead of using a sampled area, you also can use a pattern with the Healing Brush tool This fix takes the texture of the pattern you choose and adds it to the color of the area you pass the Healing Brush over To use a pattern, choose Create Texture from the Healing Brush options bar In Figure 15.12, I used the Healing Brush to give the background of this photo dimension

Another benefit of the Healing Brush is that you can use the Clone Source panel to create multiple samples, sample from different files, and modify the size and rotation of the source The Clone Source panel is an important tool in creating the best fixes with the Healing Brush or Clone Stamp, but it is an integral part of the Clone Stamp and is covered in detail in that section of this chapter

FIGURE 15.11

Without the light poles, this photo is more engaging

FIGURE 15.12

The Healing Brush can create textures

Both the Spot Healing Brush and the Healing Brush frequently leave a blurry smudge behind instead of a clean

fix This is a good time to try again, because this result rarely happens every time you try to heal your photos n

The Patch tool

The Patch tool allows you to heal larger areas easily and preview the target area being used It also uses the source more strongly to completely cover the area that needs fixing, so color is not left behind as frequently as it is with the Healing and Spot Healing Brushes

The boy in Figure 15.13 has a skinned area on his forehead that needs to be fixed The Healing and Spot Healing Brushes leave such a big area smudged and with pink highlights The Patch tool

is ideal

FIGURE 15.13

The skinned area on this boy’s forehead is easily fixed with the Patch tool

The Patch tool is extremely easy to use; follow these steps to get the best results:

On the Web Site

Use Figure 15-13 to follow along with this exercise n

1 Open an image that needs patched.

2 Select the Patch tool from the Healing Brush tools flyout in the Toolbox.

3 Select the Patch option from the options bar

If you want to make a selection around the area that needs correcting, select Source If you want to make a selection around the area you are using to correct the image, select Destination For this example, I selected Source

Note

If you choose Transparent in the Patch options, the patch has a transparent background and simply creates an

overlay over the patched area n

4 Draw around the area that needs to be healed, as shown in Figure 15.14

The Patch tool creates a selection much like the Lasso Selection tool Draw around the area you want selected, and close the selection You can use the Selection options in the options bar to add to or subtract from the selection, but it doesn’t have to be very exact

Note

The Patch tool uses a selection to replace the targeted area It doesn’t matter if you’ve used the Patch tool to

create the selection You can make a selection with any Selection tool and use the Patch tool to move and

replace the selection n

FIGURE 15.14

Select the area you want patched by drawing a circle around it with the Patch tool

5 Click and drag the selection over the area that you want to use to fix the patch

The selection itself won’t move, as you can see in Figure 15.15, but an identical selection shows the area you are using Additionally, the pixels inside your original selection change to preview the fix This preview is not the final result; after you release the mouse button, the two areas are blended to create a seamless patch

FIGURE 15.15

Simply drag the selection to an area that can be used to fix the blemish and release the mouse button for a fantastic fix

6 Use Ctrl/Ô+D to deselect the selected areas and see your final results

Don’t get caught up in the idea that the Patch tool is only for fixes You can create some great artis-tic effects very quickly using the Patch tool Its targeting and blending capabilities make it perfect for creating fun images like the one shown in 15.16 I used the Destination option to select the face and then dragged it to the rock on the right The entire process took less than 15 seconds!

FIGURE 15.16

The Patch tool can be used to create blends for artistic effects

Content-Aware fill

The Content-Aware fill isn’t found with the Healing tools, but it works to take unwanted elements seamlessly out of an image The Content-Aware feature is new with Photoshop CS5 and uses an amazing new algorithm that works to fill in a selected area of a photo seamlessly in a relatively short amount of time

Because the Content-Aware tool works with the Selection tools, it is possible to make precise selec-tions For instance, the second boy in Figure 15.17 doesn’t look like he wants to be in this photo

Using the Quick Selection tool, I can select areas that need to be precise, such as those bordering the first boy I left the other areas with a rough selection on purpose so the Content Fill didn’t take

on the look of a silhouette

On the Web Site

You can try using the Content-Aware fill on this image Download Figure 15-17 from the Web site n

FIGURE 15.17

Using the Selection tools allows you to target precise areas on which to use the Content-Aware fill

After you’ve made a selection in an image, choose Edit ➪ Fill to open the Fill dialog box, as shown

in Figure 15.18 Choose Content-Aware from the drop-down menu After you click OK, the Content-Aware algorithm takes over, searching your photo for appropriate areas to use in replacing the area that was selected This can be a time-intensive process, but when it is finished, your image should look pretty close to realistic You can see in Figure 15.19 that my image is certainly not per-fect, but it takes relatively little cleanup to make it look good