43 lines
1.1 KiB
Groff
43 lines
1.1 KiB
Groff
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.TH IM_MAXPOS_VEC 3 "01 September 2006"
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.SH NAME
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im_maxpos_vec, im_minpos_vec \- Find highest or lowest pixel values
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.SH SYNOPSIS
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.nf
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.B #include <vips/vips.h>
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.sp
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.BI "int im_maxpos_vec( IMAGE " "*im" ", int " "*xpos" ", int " "*ypos" ", double " "*maxima" ", int " "n" " );
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.br
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.BI "int im_minpos_vec( IMAGE " "*im" ", int " "*xpos" ", int " "*ypos" ", double " "*minima" ", int " "n" " );
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.fi
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.SH DESCRIPTION
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.B im_maxpos_vec(3)
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fills the arrays
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.I xpos
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and
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.I ypos
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with the x and y coordinates of the
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.I n
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pixels in the image
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.I im
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which have the highest values. It writes those values (at double-precsion)
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into the corresponding elements in the array
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.IR maxima ".
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.PP
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If there is a draw for the
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.IR n "th
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pixel, then which of the drawing pixels is used is not defined.
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.PP
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.B im_minpos_vec(3)
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performs the same operation, looking for the lowest valued pixels.
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.SH RETURN VALUE
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The functions returns 0 on success and -1 on error.
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.SH SEE ALSO
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im_maxpos(3), im_minpos(3)
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.SH COPYRIGHT
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.br
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Copyright 2006, The Nottingham Trent University.
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Copyright 2006, Tom Vajzovic.
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.SH AUTHOR
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Tom Vajzovic
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