Chapter 10 Notes

(Oh my god, this chapter is 110 pages! >___<)

- General preferences panel contains options that are not specific to any particular area of the program. This includes: Color Picker (should be set to Adobe), Image Interpolation (refers to the method by which pixels are created or thrown away), History States (an advanced undo command that allows you to undo many steps), Dynamic Color Slides (affects behaviour of color bars), Save Palette Locations (leave it turned on), and History Log (allows you to save a record of your activity).
- A digital image is made up of a grid of pixels, with each pixel's color or tone is represented by the number. In RGB, each color has 3 number values, each of which tells how much Red, Green, and Blue is in this color.
- A "working space" defines how the program interprets the color numbers and also helps consistency.
- Adobe RGB (1998) is the preferred working space and the books recommends it for digital photographers, as it has the largest color gamut of any of the four, which is Adobe RGB (1998), AppleRGB, ColorMatch RGB,and sRGB
- Many digital cameras allow you to choose a color space for your images in the camera and one of them is Adobe RGB 1998. The only drawback is that the gamut extends into brightly saturated greens which would be impossible to reproduce.
- ColorMatch RGB is based on the gamut of an actual device, the Radius PressView monitor; it has a much smaller gamut than Adobe RGB 1998, it does include most of the common CMYK gamuts and does not contain as many intense saturated colors as Adobe
- sRGB is Photoshop's default working space. they developed it to represent the gamut of a "typical" monitor. sRGB is not ideal for people working with color digital photography.
- In Full Screen Grey mode the image is centered on a background of neutral grey so that one may evaluate the colors in the photo by comparing the neutral grey
- Exposure is usually one of the first thing that we evaluate. If underexposed, you will have a hard timne lightening it without noise. If its overexposed than you need to make sure it still retains detail while adjusting
- Color Balance - warmness or coolness of the photos
- The Eyedropper tool can help you see the tones that are represented in the photo and you can sample a color or color value or a tonal value
- You can control clipped tones using the output level sliders, by moving the output levels hightlight slider toward the left