Improving Photo CD images Photo CD scans are specifically designed to reproduce photographic images accurately. However, this means that a Photo CD image will exhibit the same problems, such as soft focus and color casts, that can be seen in the original photograph. Some Photo CD collections provide better-quality images than oth- ers, but you can improve almost all images with a few simple steps. The following procedure describes how to apply the Unsharp mask filter to the Lightness (“L”) channel in LAB Color mode to sharpen a Photo CD image. 1 Use the previous procedure to acquire a Kodak Photo CD image into a Canvas document. 2 Select the image you just acquired and choose Image > Mode > LAB Color. 3 Double-click the image with the Selection tool to put it in edit mode. 4 Choose Image > Show Channels to open the Channels palette. 5 In the Channels palette, click the Lightness channel to activate it. For more information, see “Activating channels” on page 33.674. 6 Choose Image > Filter > Sharpen > Unsharp Mask. Select the preview option and adjust the Amount and Radius until the channel appears significantly sharper. Click OK. 7 If you plan to use special effect filters, choose Image > Mode > RGB Color to convert the image to RGB Color mode. Lightness (L) channel selected in the Channels palette
Canvas 8 Help: Scanning, sizing, and tracing images (18 of 18)                                      Page #650