Chọn màu sắc Bây giờ bạn hiểu về màu sắc và làm thế nào nó liên quan đến chế độ khác nhau trong Photoshop, điều cuối cùng bạn cần biết là làm thế nào để thực sự lựa chọn một màu trong Photoshop. Bạn sẽ được làm việc với nhiều công cụ khác nhau trong Photoshop đòi hỏi bạn chọn màu sắc để sử dụng. | Chapter 4 Understanding Colors Histograms Levels and Curves Note An image with 32 bit per channel is considered an HDR High Dynamic Range image. Typically these images are used in 3D rendering and advanced CGI animation effects. Choosing Colors Now that you understand about color and how it relates to different modes in Photoshop the last thing you need to know is how to actually select a color in Photoshop. You will be working with many different tools in Photoshop that require you to select colors to use. Remember that even in 8 bits per channel you can choose from more than 16 million colors. The following sections discuss the main methods that you will use to set and select colors. Using the Color Picker tool The most common method of choosing a color is using the Color Picker tool shown in Figure . The Color Picker tool is launched by clicking the foreground or background tool in the Photoshop toolbox. The Color Picker tool allows you to select any color possible in Photoshop and gives you a wealth of information. The main areas of the Color Picker tool are the color chooser pane the range slider the new current color view and the color settings. The Color Picker lets you use the mouse to select the color of any pixel displayed in the pane. The range slider lets you use the mouse to adjust the range of colors displayed in the Color Picker pane. The new current color view simply shows the current color on the bottom and the newly selected color on top for comparison purposes. FIGURE Selecting colors using the Color Picker tool 121 Part I Getting Started with Adobe Photoshop CS5 The color settings allow you to change each individual aspect of color that Photoshop uses to define a color. Selecting one of the color settings changes the types of color that can be displayed in the color chooser pane. Changing the value of one of the settings changes the selected color. This list describes the available settings in the Color Picker tool H Changes the hue of
