SpeedSix.RemGrain2   (Discreet Box2)



PURPOSE

Grain removal; a different and in most cases a better algorithm than the original RemGrain. RemGrain2 works by first calculating a map of where edges are in the input image. It then creates separately blurred versions of the red, green and blue channels. You control how much they are blurred. It then blends between the original image and the blurred image using the edge map. You get the original (sharp) image where there are edges (and hence real detail) and the blurred image where there are no edges - which kills off the film grain. You can weight the process towards preserving sharpness in edge regions while possibly keeping some unwanted grain, or killing grain at the possible cost of blurring genuinely important image detail. This is the purpose of the sharpness controls.



INPUT CLIPS

 1: Input



RemGrain2   CONTROL PAGE

RGB  (List Box  Options: Mix | Exclusive, Default: Mix)
Work with a mixture of the rgb channels or each one exclusively. After tuning each channel switch back to Mix mode to reveal the completed grain removal.
Pos2  (Position  Default: 0.6,0.6)

Pos1  (Position  Default: 0.4,0.4)

ROI box  (Checkbox  Default: Off)
     Switch on to examine a particular area, leaving pixels outside unaffected.

R  (Checkbox  Default: On)
G  (Checkbox  Default: On)
B  (Checkbox  Default: On)
     In Mix mode all channels are active initally though you can toggle them on and off to see the resultant colour component. In Exclusive mode the grey level of each channel is displayed so you can work on perfecting the settings for the channel chosen.

R  (Checkbox  Default: On)
See also: G, B
     View only the red channel - in both Mix and Exclusive modes.

G  (Checkbox  Default: Off)
See also: R, B
     View only the green channel - in both Mix and Exclusive modes.

B  (Checkbox  Default: Off)
See also: R, G
     View only the blue channel - in both Mix and Exclusive modes.

Red Blur  (Number  Min: 0.0, Max: 100.0, Default: 5.0)
Green Blur  (Number  Min: 0.0, Max: 100.0, Default: 5.0)
Blue Blur  (Number  Min: 0.0, Max: 100.0, Default: 5.0)
     Gently blur each channel to even out the grain and then......

Red Sharp  (Number  Min: 0.0, Max: 100.0, Default: 1.0)
Green Sharp  (Number  Min: 0.0, Max: 100.0, Default: 1.0)
Blue Sharp  (Number  Min: 0.0, Max: 100.0, Default: 1.0)
     ......set the sharpening level for each channel to bring back into focus.
Hint: The default sharpness is usually too low. Try working down from the
maximum to get the best results.

Index