Workshop


Q&A

Q1:

What's the difference between the Blur filter and the Blur tool?

A1:

You can apply the Blur tool as if it were a paintbrush to as small an area as you want. The Blur filter blurs the entire image or selection evenly.

Q2:

If I change my mind about applying a filter, can I stop the process?

A2:

To cancel the filter as it's being applied, press Command+period (Mac) or Esc (Windows). To undo a filter, use the Undo command: Command+Z (Mac) or Control+Z (Windows). If it's too late to undo, use the History palette to revert to a stage before you applied the filter.

Q3:

I have a photo that's slightly out of focus. Is there any way to make the subject stand out more?

A3:

Select the subject and copy it to a new layer. Use Gaussian Blur on the original, and Sharpen on the subject only.

Quiz

1:

Sharpen More applies _______ as much correction as Sharpen.

  1. Exactly

  2. Twice

  3. Half

2:

Gaussian Blur uses a _______ to determine how blur is applied.

  1. Mathematical formula

  2. Random memory algorithm

  3. Prismatic crystal filter

3:

Many experts advise applying which filter to every photograph you bring into Photoshop?

  1. Sharpen

  2. Gaussian Blur

  3. Unsharp Mask

4:

Fading a filter has this effect:

  1. It fades an action such as applying a filter according to a percentage you determine.

  2. It applies the filter at half strength.

  3. It applies a 50% gray tone over the filter.

Quiz Answers

A1:

b. To get the same effect, apply Sharpen twice.

A2:

a. The blur follows Gaussian distribution (the bell curve).

A3:

c. The Unsharp Mask filter is especially helpful with scanned images.

A4:

a. You can fade from 100% down to 1%.

Exercises

Find or shoot a picture of yourself or a friend, and load it into Photoshop. (If you don't have a digital camera or scanner, download a news photo from the Web, or a portrait from the Web sitesee the Introduction for the URL.) Use the Blur and Sharpen filters to improve it. Find and remove wrinkles , eye bags, uneven complexions, and any other flaws. (In Hour 21, "Photo RepairBlack and White," you'll learn more techniques for improving photos.)



Teach Yourself Adobe Photoshop CS 2 In 24 Hours
Sams Teach Yourself Adobe Photoshop CS2 in 24 Hours
ISBN: 0672327554
EAN: 2147483647
Year: 2005
Pages: 241
Authors: Carla Rose

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