To create a proxy by acquiring a file You can use the Acquire command to create a proxy that is linked to a TIFF, JPEG, or CVI file. You can edit acquired proxies the same as other proxy images. How- ever, some changes you might make, such as adding image channels, are not supported by JPEG or TIFF files. In this case, when you save the file, Canvas asks whether to save the image in Canvas Image for- mat to preserve the changes. 1 To acquire an image from a file, choose Image > Acquire and choose a file format in the Acquire submenu. 2 In the directory dialog box, select the Acquire As Proxy option. Select the image files to acquire and click Done. 3 The Make Proxy dialog box appears. Type the proxy resolution in the “Make…Times Smaller” box. The larger the number, the lower the resolution of the proxy image in the document. 4 Click OK. Canvas places the proxy images in the document. Make Proxy dialog box You use the Make Proxy dialog box to create proxies linked to Canvas Image Files. A    Width and height of the im- age. B    Size of the Canvas Image File you are about to create. C   Resolution of the image. D   Memory required by the proxy. The memory required changes if you enter values in the “Make...times smaller” text box. E    Type the proxy reduction factor in this text box. The larger this value, the lower the proxy resolution and the less memory required by the proxy. F    Location of the file on disk. G   Click to change the location that Canvas will store the Canvas Image File. H   Click OK to replace the im- age with the proxy and create the Canvas Image file. E D F B G H A C
Canvas 8 Help: Image proxies (3 of 8)                                                               Page #729