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Photoshop Creative Effects and Filters
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Getting blocky with Mosaic


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Photoshop Creative Effects and Filters

with Tim Grey

Video: Getting blocky with Mosaic

I'm sure you're aware that digital images are comprised of pixels and that in most cases those pixels are square. But imagine if you could zoom those pixels, make those pixels bigger, without actually making the image bigger. That's exactly what we can accomplish with the mosaic filter in Photoshop. Let's take a look at how it operates. I'll start off by creating a copy of my background image layer. So I'll just drag the thumbnail for that layer down to the Create A New Layer button at the bottom of the Layers panel. And then from the Filter menu I'll choose Pixelate, followed by Mosaic.
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  1. 1m 24s
    1. Welcome
      1m 24s
  2. 16m 23s
    1. Adding a single filter
      3m 21s
    2. Using the Filter Gallery
      4m 51s
    3. Using Smart Filters
      4m 2s
    4. A flexible filter workflow
      4m 9s
  3. 36m 0s
    1. Creating an ethereal effect with Clarity
      2m 13s
    2. Creating a black-and-white interpretation of an image
      3m 12s
    3. Adding a monochromatic tint effect
      2m 27s
    4. Using a gradient map preset
      2m 42s
    5. Creating a gradient map preset
      7m 48s
    6. Adding a vignette
      3m 17s
    7. Adding film grain
      5m 25s
    8. Oversharpening
      3m 17s
    9. HDR tone mapping
      5m 39s
  4. 37m 47s
    1. Creating a filtered edge effect
      4m 6s
    2. Producing a dreamy look with Surface Blur
      3m 4s
    3. Iris Blur with a twist
      4m 32s
    4. The Tilt-Shift blur effect
      3m 52s
    5. Creating an oil paint effect
      4m 36s
    6. Adding selective motion blur
      4m 36s
    7. Adding lens flare
      5m 21s
    8. Adding a lighting effect
      5m 6s
    9. Adding an ethereal glow
      2m 34s
  5. 24m 21s
    1. Applying a wild curve
      3m 1s
    2. Playing with blend modes
      4m 0s
    3. Creating a painterly effect with Find Edges
      2m 41s
    4. Creating a sketch effect
      5m 26s
    5. Crystallizing pixels
      3m 6s
    6. Getting extreme with Mezzotint
      3m 42s
    7. The Solarize filter
      2m 25s
  6. 38m 38s
    1. Smearing with Liquify
      7m 0s
    2. Going fish-eye with Polar Coordinates
      3m 38s
    3. Using the Spherize and Pinch filters
      3m 18s
    4. Using the Ripple, Twirl, Wave, and ZigZag filters
      5m 45s
    5. Getting blocky with Mosaic
      2m 44s
    6. Creating huge pixels with Pointilize
      3m 0s
    7. Creating tiles
      3m 42s
    8. Creating blocks with Extrude
      4m 29s
    9. Mapping the image with Trace Contour
      2m 44s
    10. Creating a stylized wind-blown effect
      2m 18s

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Photoshop Creative Effects and Filters
2h 34m Intermediate Oct 11, 2012

Viewers: in countries Watching now:

In this one of-a-kind workshop Tim shares his favorite techniques for using Adobe Photoshop's effects and filters to create imaginative, out-of-the-ordinary images. He starts with simple things like black-and-white interpretations, monochromatic tints, vignettes, and film grain, then moves on to more dramatic effects like Surface Blur, Tilt-Shift Blur, Oil Paint. From there, head into "wilder territory," as Tim explores some experimental ways to stylize and distort your images.

Topics include:
  • Working with the Filter Gallery
  • Creating a black-and-white effect
  • Applying a vignette
  • Adding motion blur
  • Creating a painterly effect with Find Edges
  • Smearing with Liquify
  • Mapping the image with Trace Contour
Subjects:
Photography video2brain
Software:
Photoshop
Author:
Tim Grey

Getting blocky with Mosaic

I'm sure you're aware that digital images are comprised of pixels and that in most cases those pixels are square. But imagine if you could zoom those pixels, make those pixels bigger, without actually making the image bigger. That's exactly what we can accomplish with the mosaic filter in Photoshop. Let's take a look at how it operates. I'll start off by creating a copy of my background image layer. So I'll just drag the thumbnail for that layer down to the Create A New Layer button at the bottom of the Layers panel. And then from the Filter menu I'll choose Pixelate, followed by Mosaic.

That will bring up the Mosaic dialog. And you can already see very clearly the effect of this filter. We've created a mosaic of colors that were taken from the image. But the result is rather abstract, especially with these relatively large pixels that we've created. They're referred to as cells here. And we can adjust the cell size. So if I reduce the cell size, you'll see that I have what appears to be a little bit more detailed image. The pixels are now very large. These individual tiles are quite large relative to the overall image, or at least relative to the size of the original pixels.

But we still have some sense of the image. If I make that value even smaller, then I have an image that just looks like it was too low of a resolution. In most cases, you probably wouldn't want to use this type of an effect. Unless, of course, you were trying to create an image that had more of an image-like quality to it. But generally speaking, I'll use a relatively large setting for cell size. In essence, what I'm doing is just using the colors and the general form of the image in order to create an interesting mosaic. So, in most cases, I'm not really trying to produce an effect where the image clearly looks like a photograph in any respect.

It just looks like a bunch of colored blocks. But hopefully, depending on that original image, those colored blocks will create an interesting pattern. I'll go ahead and click OK to apply that effect. Another option that we have available, of course, among other things, is to reduce the opacity. So if I want to allow the original underlying image to show through, in other words the background layer, I can reduce the opacity for my background copy layer. So I'll click on the opacity control at the top right of the Layers panel and reduce that opacity, so that I can allow the image to show through.

The lower the opacity, the more of the original image will be revealed. And the higher the opacity, the less of that image. So we get the sort of ghosted effect. So something like that, I think, might be sort of interesting as a graphical representation of this photo. But despite the simplicity of this filter, there are, of course, a variety of different ways you could put it to use. With large blocks versus small blocks, with variable opacity, and of course all sorts of other effects that you could apply in addition.

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