Canon PIXMA MP620 User Manual - Page 555
of 815 s, Image Settings
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Image Settings Page 555 of 815 pages Even if Descreen is set to ON, some moire effects may remain if Unsharp Mask is set to ON. In that case, set Unsharp Mask to OFF. Selecting Magazine(Color) in Select Source in Basic Mode has the same effect as setting Descreen to ON in Advanced Mode. Reduce Dust and Scratches Scanned photos may contain white dots caused by dust or scratches. Use this function to reduce such noise. This setting is None by default. None Dust and scratches will not be reduced. Low Select this to reduce small dust particles and scratches. Large ones may remain. Medium It is recommended that you normally select this setting. High Select this to reduce small/large dust particles and scratches. Evidence of the reduction process may remain and may also remove delicate parts of the image. Important This function may not be effective for some types of photos. Note It is recommended that you select None when scanning printed materials. Fading Correction Use this function to correct photos that have faded with time or have a colorcast. Colorcast is a phenomenon where a specific color affects the entire picture due to the weather or ambient strong colors. This setting is None by default. None Fading correction will not be applied. Low Select this to correct a small amount of fading and colorcast. Medium It is recommended that you normally select this setting. High Select this to correct a large amount of fading and colorcast. This can affect the tone of the image. Important You can set Fading Correction after preview. Fading Correction may not be effective if the scan area is too small. You can set this setting when Recommended is selected on the Color Settings tab of the Preferences dialog box. When you click Multi-Crop, this setting turns to None and you cannot change it. Grain Correction Use this function to reduce graininess (roughness) in photos taken with high-speed or sensitized film. This setting is None by default. None Graininess will not be reduced. Low Select this when the photo is slightly grainy. Medium It is recommended that you normally select this setting. High Select this when the photo is very grainy. This can affect the gradation and sharpness of the