size of the image, and the file format in which you can save the image. For this lesson, you’ll create a duotone from this image. A duotone is an image made up of screens of two basic colors, usually black and one other ink. To do this, you must first make a Grayscale image and then select which color to blend into the image. A traditional “black and white” photograph is actually a grayscale image to a computer. The computer uses 256 levels of gray to con- struct the shadows and other features found in a typical black and white image. An image in Black & White mode reduces the number of colors in the image to two. Each pixel is either 100% black or 100% white. Therefore, the Black & White mode is not for black and white photos, but rather for single-color illustrations, logos, or images. You can view the mode and resolution of a paint object by selecting it and looking at the right end of the Status bar at the bottom of the screen. If you select the image in this lesson you’ll see that it is (72 dpi) and currently in RGB Color mode. To create a duotone 1 Select the paint object. 2 Choose Image > Mode > Grayscale. 3 Canvas asks whether you would like to discard the color infor- mation from the image. Click OK. The image is now in grayscale mode. 4 Choose Image > Mode > Duotone. The Duotone Options dia- log box appears in which you define your ink colors. 5 Since only black is in the image, Canvas considers it a monotone image. Select “Duotone” from the Type pop-up menu so you can use a second color. Tip If you want to change the inks used in a duotone, you must select Image > Mode > Duo- tone Inks. This menu item appears when a duotone image is selected.
Canvas 8 Help: Introduction to image editing (4 of 12)                                              Page #38