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Part 4. Working with Tone

Part 4. Working with Tone

Task

1 How to Measure and Compare Pixel Values 98

2 How to Optimize the Tonal Range 100

3 How to Improve Contrast with Curves 102

4 How to Improve Contrast with Shadow/Highlight 104

5 How to Use the Dodge, Burn, and Sponge Tools 106

6 How to Sharpen Images 108

7 How to Use SmartSharpen 110

8 How to Use Blur to Sharpen 112

9 How to Convert Images to Grayscale 114

The tasks in this part look at how to work with image tonality. As far as digital images are concerned, tonality refers to the grayscale values from 0 to 255 that differentiate the image pixels. Tonality is black and white and shades of gray; tonality is a histogram, a halftone, salt and pepper, the I Love Lucy show, and a dark foreboding sky hanging low over the concrete streets of New York.


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