SC2G® - Selective Color to Grey

Selective Color to Grey is a unique feature that enables the controlled conversion from colors to grey. The direct control converting the primary and secondary colors into shades of grey gives publishers the ability to choose clearly distinguished shades of grey.

The clear differentiation between colors of the original color image can get lost in an automatic conversion process, because the resulting grey shades may be adjacent. In magazines and newspapers this often results in grey images, which do not have very detailed shades. SilverFast's SC2G, Selective Color to Grey, can maintain the grey shade differentiation by controlling the conversion process. For all six colors: Red, Green, Blue, Cyan, Magenta, and Yellow, the user can control into what shade of grey the color will be converted. Since the whole process is interactively monitoring the final grey image, the user quickly achieves the desired result.

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Original Sample	With Standard Conversion	With SC2G (Blue -148)

As the example above demonstrates, the sky appears too dark with the standard color to grey conversion. With SilverFast‘s Selective Color to Grey conversion (SC2G) the sky can be selectively made brighter, without changing the brightness of other objects of the sample. After changing into Greyscale mode and activating the Selective-Color-Dialog, click into the sky of the sample. Now we want to make the grey representing the sky brighter and click and hold repeatedly onto the top end of the blue control until the grey looks bright enough.
By checking "RGB Preview" you can switch between "RGB color preview" and "Grey preview" in order to control which color becomes which Grey tone. The following Movie demonstrates the complete procedure:

Original Sample	With Standard Conversion	With SC2G (Red +26, Yellow -20)

The example above shows how with with the standard grey conversion differentiation between red and yellow in the flower is lost. With SC2G the grey values of red tones are made selectively darker and grey values of yellow tones are made selectively brighter. As a result the sample on the right demonstrates how all tonal values of the flower can be nicely distinguished!