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Grayscale
The Grayscale module converts a color RGB image to grayscale values using the following formula techniques.
Note that R,G,B represent the current pixels colors values in RGB color space.
Method 1
pixel = (R+G+B)/3
Method 2
pixel = 0.299R + 0.587G + 0.114B
Method 3
pixel = maximum(R,G,B)
the 'pixel' value is then assigned to the Red, Green and Blue channels to create the final image.
Note that each technique will change the way colors are converted to grayscale which will effect
the relative intensities of each color. For example, method #1 makes Red and Blue seem like the
same grayscale color whereas method #2 does not.
Interface
Instructions
1. Specify which technique you would like to use in converting your image to grayscale by
selecting the appropriate radio button
Example
| Source Image | Method #1 |
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| Method #2 | Method #3 |
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See Also
Equalize
Normalize Color
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