Documentation still describes the removed cv::Mat constructor from IplImage* (Bug #4031)

Added by Ralph Hartley over 10 years ago. Updated about 10 years ago.

Status:	Done	Start date:	2014-11-26
Priority:	Normal	Due date:
Assignee:	Maksim Shabunin	% Done:	0%
Category:	documentation
Target version:	3.0
Affected version:	branch 'master' (3.0-dev)	Operating System:	Any
Difficulty:	Easy	HW Platform:	Other
Pull request:	https://github.com/Itseez/opencv/pull/3479

Description

For example in "Basic Structures" it says:
Partial yet very common cases of this user-allocated data case are conversions from CvMat and IplImage to Mat. For this purpose, there are special constructors taking pointers to CvMat or IplImage and the optional flag indicating whether to copy the data or not.

It even has several code fragments using it, which no longer work:
IplImage* img = cvLoadImage("greatwave.jpg", 1);
Mat mtx(img); // convert IplImage* -> Mat
CvMat oldmat = mtx; // convert Mat -> CvMat
CV_Assert(oldmat.cols img->width && oldmat.rows img->height &&
oldmat.data.ptr (uchar*)img->imageData && oldmat.step img->widthStep);