Image::Leptonica::Func::sel2
version 0.03
sel2.c
sel2.c Contains definitions of simple structuring elements SELA *selaAddBasic() Linear horizontal and vertical Square Diagonals SELA *selaAddHitMiss() Isolated foreground pixel Horizontal and vertical edges Slanted edge Corners SELA *selaAddDwaLinear() SELA *selaAddDwaCombs() SELA *selaAddCrossJunctions() SELA *selaAddTJunctions()
SELA * selaAddBasic ( SELA *sela )
selaAddBasic() Input: sela (<optional>) Return: sela with additional sels, or null on error Notes: (1) Adds the following sels: - all linear (horiz, vert) brick sels that are necessary for decomposable sels up to size 63 - square brick sels up to size 10 - 4 diagonal sels
SELA * selaAddCrossJunctions ( SELA *sela, l_float32 hlsize, l_float32 mdist, l_int32 norient, l_int32 debugflag )
selaAddCrossJunctions() Input: sela (<optional>) hlsize (length of each line of hits from origin) mdist (distance of misses from the origin) norient (number of orientations; max of 8) debugflag (1 for debug output) Return: sela with additional sels, or null on error Notes: (1) Adds hitmiss Sels for the intersection of two lines. If the lines are very thin, they must be nearly orthogonal to register. (2) The number of Sels generated is equal to @norient. (3) If @norient == 2, this generates 2 Sels of crosses, each with two perpendicular lines of hits. One Sel has horizontal and vertical hits; the other has hits along lines at +-45 degrees. Likewise, if @norient == 3, this generates 3 Sels of crosses oriented at 30 degrees with each other. (4) It is suggested that @hlsize be chosen at least 1 greater than @mdist. Try values of (@hlsize, @mdist) such as (6,5), (7,6), (8,7), (9,7), etc.
SELA * selaAddDwaCombs ( SELA *sela )
selaAddDwaCombs() Input: sela (<optional>) Return: sela with additional sels, or null on error Notes: (1) Adds all comb (horizontal, vertical) Sels that are used in composite linear morphological operations up to 63 pixels in length, which are the sizes over which dwa code can be generated.
SELA * selaAddDwaLinear ( SELA *sela )
selaAddDwaLinear() Input: sela (<optional>) Return: sela with additional sels, or null on error Notes: (1) Adds all linear (horizontal, vertical) sels from 2 to 63 pixels in length, which are the sizes over which dwa code can be generated.
SELA * selaAddHitMiss ( SELA *sela )
selaAddHitMiss() Input: sela (<optional>) Return: sela with additional sels, or null on error
SELA * selaAddTJunctions ( SELA *sela, l_float32 hlsize, l_float32 mdist, l_int32 norient, l_int32 debugflag )
selaAddTJunctions() Input: sela (<optional>) hlsize (length of each line of hits from origin) mdist (distance of misses from the origin) norient (number of orientations; max of 8) debugflag (1 for debug output) Return: sela with additional sels, or null on error Notes: (1) Adds hitmiss Sels for the T-junction of two lines. If the lines are very thin, they must be nearly orthogonal to register. (2) The number of Sels generated is 4 * @norient. (3) It is suggested that @hlsize be chosen at least 1 greater than @mdist. Try values of (@hlsize, @mdist) such as (6,5), (7,6), (8,7), (9,7), etc.
Zakariyya Mughal <zmughal@cpan.org>
This software is copyright (c) 2014 by Zakariyya Mughal.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Image::Leptonica, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Image::Leptonica
CPAN shell
perl -MCPAN -e shell install Image::Leptonica
For more information on module installation, please visit the detailed CPAN module installation guide.