ptg Chapter 14 Manipulating Images with Filters 347 When Adobe introduced the Filter Gallery in Photoshop, it finally gave designers the ability to view the effects of multiple filters applied to a single image. While this changed forever how we apply filters to an image, there is one more creative way to work—Blending Modes. For example, you can make a copy of an image, apply a separate filter effect to each layer, and then use the Blending Modes option to create a totally different image. While this is not a new technique, the results of combining two or more layers together, each with a different filter effect, can produce quite stunning results. Blending Modes and Filter Effects Work with Blending Modes and Filter Effects Open an image. Select the layer containing the image you want to modify. Press Ctrl+J (Win) or A+J (Mac) to create a copy of the selected layer. Select the layers one at a time and apply a different filter to each layer. Select the top layer. Click the Blending Modes list arrow and experiment with the various blending options. In this example, the Cutout and Find Edges filters were used on the separate layers, and then combined with the Linear Light Blending Mode. 6 5 4 3 2 1 1 Final image with the Linear Light Blending Mode applied. 2 6 5 Did You Know? You can use the Opacity option to fur- ther control the final image. If the blending effect appears a bit too intense, simply lower the opacity of the top or bottom layer to change the intensity of the filter effects. From the Library of Wow! eBook ptg 348 Chapter 14 The Pattern Maker filter (optional plug-in) lets you create your own dis- tinctive patterns, based on image information in the active document, or clipboard memory. Since the pattern is based on sample data, it shares the visual characteristics of the sample. For example, if you sample an image of a cloudy sky, the Pattern Maker generates a tile-like pattern that is different from the sample but still retains the elements of a cloudy sky. You can even generate multiple patterns from the same sample. Building Custom Patterns Build Custom Patterns Open a document. Select the Layers panel, and then select the layer you want to use to create a pattern. Click the Filter menu, and then click Pattern Maker. If the filter is not available, go to www.adobe.com , search for the filter, and then download it. Select the Rectangular Marquee tool on the toolbox, and then select a portion of the image. Select the portion of the image you want to use to generate an image. Click Generate to create a random pattern based on the selected sample. Click Generate Again to generate another random pattern. IMPORTANT All the generated patterns are stored in the Tile History box, located on the bottom right of the Pattern Maker dialog box. Select from the available Tile Generation options: ◆ Use Clipboard As Sample. Uses the pixel information contained in the Clipboard as the tile- generating pattern. ◆ Use Image Size. Creates a tile pattern the size of the original image. 8 7 6 5 4 3 2 1 7 4 6 5 From the Library of Wow! eBook ptg Chapter 14 Manipulating Images with Filters 349 ◆ Width. Enter a value (1 to 800), or click the black triangle and drag the slider left or right to define a width. ◆ Height. Enter a value (1 to 800), or click the black triangle and drag the slider left or right to define a height. ◆ Offset. Click the list arrow, and then click None, Horizontal, or Vertical. ◆ Amount. Enter a percentage value (1% to 100%), or click the black triangle and drag the slider left or right. ◆ Smoothness. Click the list arrow, and then select a value of 1, 2, or 3. ◆ Sample Detail. Enter a value from 3 to 21, or click the black triangle and drag the slider left or right. ◆ Show. Click the list arrow, and then select between the generated sample and the original image. ◆ Tile Boundaries. Select the check box to view the tile edges in the preview window. Click on the color box, and then select an alternate color. Scroll through your tile patterns using the left/right arrow keys underneath the Tile History preview. Stop when you see the pattern you want. Click OK. IMPORTANT When you click OK, the Pattern Maker filter over- writes the original image, so it's a good idea to make a copy of the image in a separate layer before using the Pattern Maker filter. 10 9 10 8 9 Using Pattern Maker Custom patterns can be generated from any RGB, Grayscale, CMYK, or Lab Color mode graphic image. In addition, when you create a pattern, the original image is overwritten with the new pattern, so you can use the generated pattern, reopen the Pattern Maker filter, and then create new patterns from the pattern you just created. For Your Information From the Library of Wow! eBook ptg 350 Chapter 14 Photoshop's Fade command is a one-shot chance to change your mind. For example, you've just applied the Find Edges filter to an image. You like the look but the effect is too dramatic. What you really want to do is tone down the effect. Unfortunately, filter effects don't fade like a gradient; they are simply applied, all or nothing, to the image. You could create a copy of the original layer, apply the effect to the copy, and then use Layer transparency and blending mode options to merge the effect with the image, but there's an easier way. Just use the Fade command. Using the Fade Command Use the Fade Command Open a document. Select the Layers panel, and then select the layer to which you want to apply a filter. Click the Filter menu, and then click Filter Gallery. Apply any of Photoshop's filters to the active image. Click OK. Click the Edit menu, and then click Fade. The Fade command includes the name of the applied filter. IMPORTANT The Fade command must be executed before performing any other command. Once you execute another command, the ability to modify the last filter is lost. Change the Opacity and Mode settings until you see the effect you're after. Click OK. 8 7 6 5 4 3 2 1 1 8 Filter effect and Fade applied 7 Did You Know? You can use the Fade command with almost any filter or drawing tool. Every time you draw, use a command or use a filter, the Fade command gives you a one-shot chance to fade and blend. From the Library of Wow! eBook ptg Chapter 14 Manipulating Images with Filters 351 When you apply a filter to an image, Photoshop applies the filter equally to the entire image. Unfortunately, that might not be what you had in mind. For example, you might want to apply the Gaussian Blur fil- ter to a portion of the image. In that case, Photoshop's selection tools come to the rescue. The primary purpose of making a selection is to define a work area, and when you select an area before applying a fil- ter, the only area impacted by the filter will be the selected area. Controlling Filters Using Selections Control Filters Using Selections Open a document. Select the Layers panel, and then select the layer to which you want to apply a filter. Click one of the selection tools on the toolbox, and then create a selection in the document window. Click the Filter menu, and then click Filter Gallery. Select any of Photoshop’s filters. Adjust the filter options until you see the effect you want. Click OK. The filter is only applied to the selected areas of the image. 7 6 5 4 3 2 1 1 Selection See Also See Chapter 4, “Mastering the Art of Selection,” on page 77 for more infor- mation on creating selections. 5 6 7 From the Library of Wow! eBook ptg 352 Chapter 14 Photoshop's filters can be applied to any raster image. In addition, fil- ters can be controlled with the use of selections. You can use any of Photoshop's selection tools to define a working area. However, simple selections are limited in what they can do. Although the edge of selec- tions can be modified by feathering, the inside area of the selection is completely selected. What if you want to apply a filter in a completely different way? For example, what if you want to apply a filter that is stronger on the right side of the image, and slowly tapers off from left to right? In that case a simple selection won't help, but a Channel mask will do exactly what you need. Using a Channel Mask to Control Filter Effects Use a Channel Mask to Control Filter Effects Open a document. Click the Channels panel, and then click the Add New Channel button. Select the Gradient tool on the toolbox, click a linear gradient, select the default foreground and background colors of black and white, and then drag left to right across the new channel mask. Photoshop creates a horizontal, black to white channel mask. Select the Layers panel, and then select the layer containing the image you want to modify. 4 3 2 1 3 1 4 See Also See Chapter 10,“Creating Masks,” on page 243 for information on using Channel Masks. From the Library of Wow! eBook . eBook ptg 352 Chapter 14 Photoshop& apos;s filters can be applied to any raster image. In addition, fil- ters can be controlled with the use of selections. You can use any of Photoshop& apos;s selection. pattern you just created. For Your Information From the Library of Wow! eBook ptg 350 Chapter 14 Photoshop& apos;s Fade command is a one-shot chance to change your mind. For example, you've. you want to apply a filter. Click the Filter menu, and then click Filter Gallery. Apply any of Photoshop& apos;s filters to the active image. Click OK. Click the Edit menu, and then click Fade.