Does anyone have any suggestions for additional filters? I currently 
have these on the "to-do" list:
highlight/midtone/shadow level adjustment
color_function filter


In development:
find_edges
    The "cartoon-like" filter. It basically works, but still needs a lot 
of work.

patterned_blur
    Blurs the image by an amount controlled by a pigment(the only reason 
it is here is because I haven't tested it yet, it compiled fine. :-) ).


(Mostly) Finished:
stars
    Generates non anti-aliased starsfield on portions on the image with 
a given color.

steps
    Divides smooth gradients of color into separate steps. This might 
make good "terraced" height field landscapes.

normal
    Displays the normal values as rgb colors, scaled into the 0-1 range.

multiply
    Multiplies the image by a given color. I will probably extend it to 
take a pigment.

add
    Adds a given color to the image. I will probably extend it to take a 
pigment.

exponent
    Raises the values of each color channel to a power in the respective 
channel of a given color. I will probably extend it to take a pigment.

clip_colors
    Clips the colors of the image to always be less than a specified 
color. I will probably modify it to take two colors, to clip to a range.

invert
    Inverts the image, using the formula component = 1-component.

blur_matrix
    Also called a convolution matrix(I think). Useful for directional 
blurring, etc.

color_matrix
    Runs the color through a 3*3 matrix. Useful in combination with 
multiply, add, exponent, etc.


I will post the source code soon, hopefully later tonight.

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/

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