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Rotate color
Red channel is replaced with green, green channel is replaced with blue, blue channel is replaced with red.
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Invert
Inverts specified image.
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Sepia
Makes an image look like an old brown photo.
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Gray scale
Converts color image into gray scale image.
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Gamma correction
The filter performs gamma correction of specified image in RGB color space.
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Gray scale to RGB
Grey scale to RGB.
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Color filtering
The image processing filter filters pixels inside/outside of specified RGB color range - it keeps pixels with colors inside/outside of specified range and fills the rest with specified color.
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Euclidien color filtering
The image processing filter filters pixels, which color is inside/outside of RGB sphere with specified center and radius - it keeps pixels with colors inside/outside of the specified sphere and fills the rest with specified color.
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Channels filtering
The channel filtering filter is similar to the above color filtering. It also operates in RGB color space, but does filtering of not entire pixels, but their RGB values. This means that pixel itself may not be filtered (will be kept), but one of its RGB values may be filtered if they are inside/outside of specified range.
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