Canon CanoScan D646U User Manual

Also see for CanoScan D646U: Product guide Quick start guide User guide User guide User guide

CanoScan Toolbox 133. You can adjust the blue, red and yellow colors by moving the applicable slider to the left (todecrease) or the right (to increase).4. You adjust the color balance for specific color groups (i.e., modify the blue tones in theshadows of an image) by clicking on one of the radio buttons and then moving the Cyanslider.5. Click OK when you are finished, or Reset to return to the default color balance settings.Sharpening an ImageThe CanoScan Toolbox Sharpen command has three options: A Little, A Lot and UnsharpMasking.To sharpen an image or a selected portion of an image:1. Open the image you want to sharpen using the Open Image command from the File menu, orscan a new image by clicking on the Scan button.2. Click and hold the Sharpen command from the Image menu. Choose A Little from theSharpen submenu for a slight change, or choose A Lot for a significant change. The Sharpenfilter is automatically applied to the image.To use the Unsharp Masking command:1. Open the image you want to sharpen using the Open Image command from the File menu, orscan a new image by clicking on the Scan button.2. Click and hold the Sharpen command from the Image menu. Choose the Unsharp Maskingselection from the Sharpen submenu.Sharpened - A LotSharpened - A Little