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