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IRIX Base Documentation 1998 November
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IRIX 6.5.2 Base Documentation November 1998.img
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cat6
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xzoom.z
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xzoom
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Text File
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1998-10-30
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2KB
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67 lines
XXXXZZZZOOOOOOOOMMMM((((6666DDDD)))) XXXXZZZZOOOOOOOOMMMM((((6666DDDD))))
NNNNAAAAMMMMEEEE
xzoom - magnify or minify an image in the x direction
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
xxxxzzzzoooooooommmm iiiinnnniiiimmmmaaaaggggeeee oooouuuuttttiiiimmmmaaaaggggeeee xxxxssssccccaaaalllleeee yyyyssssccccaaaalllleeee [[[[----iiii ----bbbb ----tttt ----mmmm oooorrrr ----qqqq]]]] [[[[----wwww bbbblllluuuurrrrffffaaaaccccttttoooorrrr]]]]
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
_x_z_o_o_m magnifies or minifies an image in the x direction with or without
filtering (xscale and yscale are floating point values). The filtering
method is one pass, uses 1-d convolution, and is optimized by integer
arithmetic and precomputation of filter coefficients. Normally xzoom
uses a triangle filter kernel in the x direction. The -_i (impulse)
option causes xzoom to do no filtering as the image is resized. The -_b
(box) option causes xzoom to use a box as the filter kernel. The -_t
(triangle) option is the default. The -_m (mitchell) option uses a cubic
filter kernel. The -_q (quadratic) indicates that a quadradic function
should be used as the filter kernel.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
izoom(6D)
PPPPaaaaggggeeee 1111