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add function setting roi using Mat#new

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This commit is contained in:
ser1zw 2016-04-10 05:22:49 +09:00
parent c21f32d356
commit 12734952ad
3 changed files with 35 additions and 8 deletions
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30
ext/opencv/mat.cpp
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@ -6,7 +6,7 @@
#include "mat_imgproc.hpp"
#include "mat_drawing.hpp"
#include "scalar.hpp"
#include "rect.hpp"
#include "error.hpp"
/*
@ -73,26 +73,40 @@ namespace rubyopencv {
* @param type [Integer]
* The type of the matrix elements in the form of constant <b><tt>CV_<bit depth><S|U|F></tt></b>.
* @return [Mat] Created matrix
* @overload new(m, roi)
* @param m [Mat] Array that (as a whole or partly) is assigned to the constructed matrix.
* No data is copied by these constructors. Instead, the header pointing to m data or its sub-array
* is constructed and associated with it. The reference counter, if any, is incremented.
* So, when you modify the matrix formed using such a constructor, you also modify the corresponding
* elements of m.
* @param roi [Rect] Regeion of interest.
* @return [Mat] Created matrix
* @opencv_func cv::Mat
* @example
* mat1 = Mat.new(3, 4) # Creates a 3-channels 3x4 matrix whose elements are 8bit unsigned.
* mat2 = Mat.new(5, 6, CV_32F) # Creates a 1-channel 5x6 matrix whose elements are 32bit float.
*/
VALUE rb_initialize(int argc, VALUE *argv, VALUE self) {
VALUE row, column, type;
rb_scan_args(argc, argv, "21", &row, &column, &type);
VALUE v1, v2, type;
rb_scan_args(argc, argv, "21", &v1, &v2, &type);
cv::Mat* dataptr = NULL;
try {
cv::Mat tempdata(NUM2INT(row), NUM2INT(column), (NIL_P(type) ? CV_8UC1 : NUM2INT(type)));
if (tempdata.empty()) {
if (RTEST(rb_obj_is_kind_of(v1, rb_cNumeric))) {
dataptr = new cv::Mat(NUM2INT(v1), NUM2INT(v2), (NIL_P(type) ? CV_8UC1 : NUM2INT(type)));
}
else {
cv::Mat* matptr = obj2mat(v1);
cv::Rect* rectptr = Rect::obj2rect(v2);
dataptr = new cv::Mat(*matptr, *rectptr);
}
if (dataptr->empty()) {
delete dataptr;
rb_raise(rb_eNoMemError, "Failed to create matrix");
return Qnil;
}
dataptr = new cv::Mat();
tempdata.copyTo(*dataptr);
RTYPEDDATA_DATA(self) = dataptr;
}
catch (cv::Exception& e) {