CODEWITHSUNDEEP
opencvimage-processing
ria15
ria15

Reputation: 55

Using remap function opencv 2.3.1

I am using OpenCV's remap function as shown below:

Mat lg,lr;
Mat *mxl = (Mat *) cvLoad("mx1.xml");
Mat *myl = (Mat *) cvLoad("my1.xml");
remap(lg, lr, mxl, myl);

mx1 and my1 are loaded as cv::Mat, but remap needs cv::_InputArray, how do I achieve this?

Upvotes: 1

Views: 463

Answers (1)

Aurelius
Aurelius

Reputation: 11329

cv::_InputArray is a proxy type used by OpenCV to accept multiple data types (like cv::Mat or std::vector) as inputs. You don't need to create one directly.

Part of your problem is that you're attempting to mix the C and C++ APIs. This is not recommended. Another factor is that cv::Mat* cannot be converted to InputArray. You can use cv::FileStorage to read your files into cv::Mat objects:

cv::Mat lg, lr;
cv::FileStorage fs1("mx1.xml", cv::FileStorage::READ);
cv::FileStorage fs2("mx2.xml", cv::FileStorage::READ);

cv::Mat mxl;
cv::FileNode fn = fs1.getFirstTopLevelNode();
fn >> mxl;

cv::Mat myl;
fn = fs2.getTopLevelNode();
fn >> myl;

cv::remap(lg, lr, mxl, myl, CV_INTER_LINEAR);

Upvotes: 2

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