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- HHHHAAAALLLLFFFFTTTTOOOONNNNEEEE((((6666DDDD)))) HHHHAAAALLLLFFFFTTTTOOOONNNNEEEE((((6666DDDD))))
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- NNNNAAAAMMMMEEEE
- halftone - half-tone an image
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- hhhhaaaallllffffttttoooonnnneeee iiiinnnniiiimmmmaaaaggggeeee oooouuuuttttiiiimmmmaaaaggggeeee ffffrrrreeeeqqqq aaaannnngggglllleeee [[[[ppppaaaatttttttteeeerrrrnnnnnnnnoooo]]]]
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _h_a_l_f_t_o_n_e converts the input image into a halftoned image, using
- Hollaway's technique. The density of the halftone screen is controlled
- by the floating point value freq. Smaller values of "freq" make a larger
- dot pattern. The angle of the halftone patterns is controlled by the
- argument "angle". The integer argument "patternno" selects the halftone
- pattern. 0 is the default and creates a dot pattern. A pattern value of
- 1 will create a line screen, while 2, 3, 4, and 5 create other halftone
- patterns.
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- PPPPaaaaggggeeee 1111
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