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add CvContour#approx_poly

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This commit is contained in:
ser1zw 2012-05-01 05:41:06 +09:00
parent 720c7c9448
commit 5dda055611
2 changed files with 55 additions and 16 deletions
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22
ext/opencv/cvcontour.cpp
View file

@ -19,8 +19,8 @@ __NAMESPACE_BEGIN_CVCONTOUR
#define APPROX_POLY_OPTION(op) rb_get_option_table(rb_klass, "APPROX_OPTION", op)
#define APPROX_POLY_METHOD(op) CVMETHOD("APPROX_POLY_METHOD", LOOKUP_CVMETHOD(op, "method"), CV_POLY_APPROX_DP)
#define APPROX_POLY_ACCURACY(op) NUM2DBL(LOOKUP_CVMETHOD(op, "accuracy"))
#define APPROX_POLY_RECURSIVE(op) TRUE_OR_FALSE(LOOKUP_CVMETHOD(op, "recursive"))
#define APPROX_POLY_PARAMETER(op) NUM2DBL(LOOKUP_CVMETHOD(op, "parameter"))
#define APPROX_POLY_PARAMETER2(op) TRUE_OR_FALSE(LOOKUP_CVMETHOD(op, "parameter2"))
VALUE rb_allocate(VALUE klass);
void cvcontour_free(void *ptr);
@ -60,8 +60,8 @@ define_ruby_class()
VALUE approx_option = rb_hash_new();
rb_define_const(rb_klass, "APPROX_OPTION", approx_option);
rb_hash_aset(approx_option, ID2SYM(rb_intern("method")), INT2FIX(CV_POLY_APPROX_DP));
rb_hash_aset(approx_option, ID2SYM(rb_intern("accuracy")), rb_float_new(1.0));
rb_hash_aset(approx_option, ID2SYM(rb_intern("recursive")), Qfalse);
rb_hash_aset(approx_option, ID2SYM(rb_intern("parameter")), rb_float_new(1.0));
rb_hash_aset(approx_option, ID2SYM(rb_intern("parameter2")), Qfalse);
rb_define_private_method(rb_klass, "initialize", RUBY_METHOD_FUNC(rb_initialize), -1);
rb_define_method(rb_klass, "rect", RUBY_METHOD_FUNC(rb_rect), 0);
@ -149,21 +149,21 @@ rb_reserved(VALUE self)
* If not nil or false, the function approximates all chains that access can be obtained to
* from self by h_next or v_next links. If 0, approximated this one.
*/
VALUE
rb_approx_poly(int argc, VALUE *argv, VALUE self)
{
VALUE approx_poly_option, storage;
VALUE approx_poly_option;
rb_scan_args(argc, argv, "01", &approx_poly_option);
approx_poly_option = APPROX_POLY_OPTION(approx_poly_option);
storage = cCvMemStorage::new_object();
/*
VALUE storage = cCvMemStorage::new_object();
CvSeq *contour = cvApproxPoly(CVCONTOUR(self), sizeof(CvContour), CVMEMSTORAGE(storage),
APPROX_POLY_METHOD(approx_poly_option),
APPROX_POLY_ACCURACY(approx_poly_option),
APPROX_POLY_RECURSIVE(approx_poly_option));
APPROX_POLY_PARAMETER(approx_poly_option),
APPROX_POLY_PARAMETER2(approx_poly_option));
if (contour && contour->total > 0) {
return cCvSeq::new_sequence(cCvContour::rb_class(), contour, cCvPoint::rb_class(), storage);
*/
}
return Qnil;
}

45
test/test_cvcontour.rb
View file

@ -10,8 +10,8 @@ include OpenCV
class TestCvContour < OpenCVTestCase
def test_APPROX_OPTION
assert_equal(0, CvContour::APPROX_OPTION[:method])
assert_equal(1.0, CvContour::APPROX_OPTION[:accuracy])
assert_false(CvContour::APPROX_OPTION[:recursive])
assert_equal(1.0, CvContour::APPROX_OPTION[:parameter])
assert_false(CvContour::APPROX_OPTION[:parameter2])
end
def test_initialize
@ -41,7 +41,46 @@ class TestCvContour < OpenCVTestCase
end
def test_approx_poly
flunk('FIXME: CvContour#approx_poly is not implemented yet.')
mat0 = create_cvmat(128, 128, :cv8u, 1) { |j, i|
(j - 64) ** 2 + (i - 64) ** 2 <= (32 ** 2) ? CvColor::White : CvColor::Black
}
contours = mat0.find_contours(:mode => CV_RETR_EXTERNAL)
poly = contours.approx_poly
assert_equal(CvContour, poly.class)
assert(poly.size > 0)
assert(poly.all? { |c| c.class == CvPoint })
poly = contours.approx_poly(:method => :dp)
assert_equal(CvContour, poly.class)
assert(poly.size > 0)
assert(poly.all? { |c| c.class == CvPoint })
poly = contours.approx_poly(:parameter => 2.0)
assert_equal(CvContour, poly.class)
assert(poly.size > 0)
assert(poly.all? { |c| c.class == CvPoint })
[true, false, 1, 0].each { |recursive|
poly = contours.approx_poly(:recursive => recursive)
assert_equal(CvContour, poly.class)
assert(poly.size > 0)
assert(poly.all? { |c| c.class == CvPoint })
}
poly = contours.approx_poly(:method => :dp, :parameter => 2.0, :parameter2 => false)
assert_equal(CvContour, poly.class)
assert(poly.size > 0)
assert(poly.all? { |c| c.class == CvPoint })
# Uncomment the following lines to show the result
# poly = contours.approx_poly(:parameter => 3.0)
# dst = mat0.clone.zero
# begin
# dst.draw_contours!(poly, CvColor::White, CvColor::Black, 2,
# :thickness => 1, :line_type => :aa)
# end while (poly = poly.h_next)
# snap dst
end
def test_bounding_rect