1 Select one or more paint objects and choose Image > Area > Resolution. 2 In the Image Resolution dialog box, select Preserve Data. Enter the desired resolution in the text box and click OK. Canvas changes the resolution of the selected paint objects. If you reduce resolution, paint objects become larger because the individual pixels are larger. If you increase resolution, paint objects becomes smaller because the individual pixels are smaller. To calculate resolution If only one object is selected, you can calculate an appropriate resolu- tion based on a halftone screen frequency by clicking Auto in the Image Resolution dialog box. Enter the screen frequency and choose Draft, Good, or Best. Canvas calculates the resolution by multiplying the screen frequency by 1 (draft), 1.5 (good), or 2 (best). Click OK to enter the calculated resolution in the Image Resolution dialog box. Image resolution settings You can specify the resolution, width, and height for a selected paint object when the Image Resolution dialog box is expanded. You can expand the dialog box when a single paint object is selected; if multi- ple objects are selected, they must match in size and resolution. Depending on the options you select, certain settings in the dialog box can’t be changed. A bracket and chain icon indicate settings that are linked and fixed. Preserve Data Prevents resampling, or interpolation, when resolu- tion or size changes. Selecting Preserve Data also selects Preserve Proportions, so width and height can change only in proportion to each other. Preserve Data means image resolution and size are relative; changing the resolution will change the object size, and changing the size will change the image resolution. If you select Pixels in the Width and Height menus, you cannot change these values, because the number of pixels cannot change when Preserve Data is selected. Width and Height You can specify a size for the paint object by entering values in these text boxes. Select measurement units in the adjacent menus. Expanded dialog box
Canvas 8 Help: Scanning, sizing, and tracing images (12 of 18)                                      Page #644