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- The Asiva Grain plug-in allows you add grain to images, which is useful
when working with digital images that have a synthetic or ’plastic’ feel.
This gives texture and feel to an otherwise sterile image.
- By specifying grain amounts in the color component sliders in combination with
relative levels in the three HSI curves, one can create grain patterns
similar to those found in various film speeds and stocks.
- The Asiva® Grain filter can be applied in three different color spaces:
the image color space (RGB or CMYK), HSI (Hue-Saturation-Intensity),
or YUV (Luminance-Chrominance).
- For the color space selected, sliders allow you to select the maximum
grain amount for each color component in the selected color space. Note that the
three curves in the three Asiva® Maps then determine the relative grain amount
depending upon hue, saturation and intensity curves.
- Define the source colors you wish to add grain to, using the built
in Hue, Saturation and Luminance (HSV) curves or maps.
Sampling the colors in the area/s or an image you wish
to affect with the built in Color Sampler Tool is a simple
way of selecting these values. Adjusting and fine tuning the curves in the
maps allows you to include or exclude certain H or S or V (Luminance)
values affected.
- The slope of the curves will define how the filter is transitioned.
A near vertical line on your Map will create sharply defined
boundaries between where the filter is applied and is not,
and a gently
sloped curve on the Map will make the boundaries less defined
or 'feathered'.
- Since there are three maps (Hue, Saturation and Luminance) to
work with, you will be able to 'feather' those boundaries
based on their Hue, Saturation or Luminance value differences.
Asiva's curves are so precise, that tedious masking prior
to application of the filters are often not necessary.
The Grain filter may also be applied to
your Photoshop selections.
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Mac:
- PPC Mac, OS 9.2.2 through Mac OS X 10.4.8
- Adobe Photoshop 5.5 through CS2
PC:
- Microsoft Windows 2000 or XP
- Adobe Photoshop 5.5 through CS2
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