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Digital Grain Dissolver
Digital GEM reduces the effect of film grain. Grain is a sandy texture that can
sometimes be seen in smooth uniform areas of the image such as the sky. Grain is
more pronounced in fast film. The results vary with the film. Scanning time increases.
Select the image to be
processed. Click the Digital
Grain Dissolver button in the
main window to active the tab.
Click the Digital Grain
Dissolver tab.
Prescan display Sample display area
Apply button
Grain-level slider
Digital Grain Dissolver sample area
Fit-to-window button
Processing-level
slider
Set the grain-level slider to the approximate grain level of the film; the index uses an
ISO scale for reference. The actual grain depends on the specific film. Set the
processing level with the slider.
Adjust or move the Digital Grain Dissolver sample area to select the portion of the
image to be used to evaluate the grain processing. Choose a smooth uniform area for
the evaluation; skin or sky are good subjects. Click and drag the center of the area to
move it. Click and drag on the frame to resize.
Click the apply button to preview the effect on the sample area. Every time the Digital-
GEM sample area is changed, or the degree of correction is adjusted, click the apply
button to view the results. The sample image can be magnified by clicking the fit-to-
window button.
Click the scan button to save the final image. To turn off the Digital Grain Dissolver,
click the Digital Grain Dissolver button again.