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implemented CvMat#threshold, modified CvMat#threshold_* to return threshold value calculated in Otsu's algorithm.

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ser1zw 2011-01-30 03:49:47 +09:00
parent 6b6a771207
commit b61adde119
5 changed files with 162 additions and 25 deletions
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17
ext/opencv.cpp
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@ -207,6 +207,14 @@ define_ruby_module()
rb_define_const(rb_module, "CV_MEDIAN", INT2FIX(CV_MEDIAN));
rb_define_const(rb_module, "CV_BILATERAL", INT2FIX(CV_BILATERAL));
/* Thresholding types */
rb_define_const(rb_module, "CV_THRESH_BINARY", INT2FIX(CV_THRESH_BINARY));
rb_define_const(rb_module, "CV_THRESH_BINARY_INV", INT2FIX(CV_THRESH_BINARY_INV));
rb_define_const(rb_module, "CV_THRESH_TRUNC", INT2FIX(CV_THRESH_TRUNC));
rb_define_const(rb_module, "CV_THRESH_TOZERO", INT2FIX(CV_THRESH_TOZERO));
rb_define_const(rb_module, "CV_THRESH_TOZERO_INV", INT2FIX(CV_THRESH_TOZERO_INV));
rb_define_const(rb_module, "CV_THRESH_OTSU", INT2FIX(CV_THRESH_OTSU));
VALUE inversion_method = rb_hash_new();
/* {:lu, :svd, :svd_sym(:svd_symmetric)}: Inversion method */
rb_define_const(rb_module, "INVERSION_METHOD", inversion_method);
@ -319,6 +327,15 @@ define_ruby_module()
RESIST_CVMETHOD(smoothing_type, "median", CV_MEDIAN);
RESIST_CVMETHOD(smoothing_type, "bilateral", CV_BILATERAL);
VALUE threshold_type = rb_hash_new();
/* {:binary, :binary_inv, :trunc, :tozero, :tozero_inv, :otsu} : Thresholding types */
rb_define_const(rb_module, "THRESHOLD_TYPE", threshold_type);
RESIST_CVMETHOD(threshold_type, "binary", CV_THRESH_BINARY);
RESIST_CVMETHOD(threshold_type, "binary_inv", CV_THRESH_BINARY_INV);
RESIST_CVMETHOD(threshold_type, "trunc", CV_THRESH_TRUNC);
RESIST_CVMETHOD(threshold_type, "tozero", CV_THRESH_TOZERO);
RESIST_CVMETHOD(threshold_type, "tozero_inv", CV_THRESH_TOZERO_INV);
RESIST_CVMETHOD(threshold_type, "otsu", CV_THRESH_OTSU);
/* color convert methods */
rb_define_module_function(rb_module, "BGR2BGRA", RUBY_METHOD_FUNC(rb_BGR2BGRA), 1);