OpenCV Standard C cvPyrUp() ?? (Feature #1669)


Added by Pei JIA about 13 years ago. Updated almost 13 years ago.


Status:Cancelled Start date:2012-03-10
Priority:Low Due date:
Assignee:Alexander Shishkov % Done:

100%

Category:imgproc, video
Target version:2.4.0
Difficulty: Pull request:

Description

Hi, all:

1)
I happened to notice that
a) OpenCV C++
there are
cv::pyrDown() and cv::pyrUp()
b) OpenCV C
there is only
cvPyrDown() but no cvPyrUp()

2) the performance of
pyrDown(image, pyr, Size(image.cols/2, image.rows/2));
pyrUp(pyr, timg, image.size());
is much much much better than that of a single
cvSmooth(img, smoothedimg, CV_GAUSSIAN, 5, 5, 0, 0);

3) my current project required me to implement everything in C, without C++

Therefore, I'm wondering if current OpenCV Standard C affords a similar function cvPyrUp() ?

Thank you very much.

Best Regards
Pei


Issue hierarchy

Feature #1669: OpenCV Standard C cvPyrUp() ??CancelledAlexander Shishkov

Bug #1670: missing cvPyrUp in documentationDoneAndrey Kamaev


Associated revisions

Revision 4cf598a8
Added by Andrey Pavlenko over 11 years ago

Merge pull request #1669 from ilya-lavrenov:ocl_copyMakeBorder

History

Updated by Pei JIA almost 14 years ago

Sorry, so stupid me.
In file pyramids.cpp, cvPyrUp() has already been defined, but just not in the online documentation I'm searching at. http://opencv.willowgarage.com/documentation/c/

Problem solved.

Cheers

Updated by Alexander Shishkov almost 14 years ago

  • Status changed from Open to Cancelled
  • Description changed from Hi, all: 1) I happened to notice that a) OpenCV C++ there are cv::pyrDown(... to Hi, all: 1) I happened to notice that a) OpenCV C++ there are cv::pyrDown()... More

Updated by Andrey Kamaev almost 13 years ago

  • Target version set to 2.4.0
  • Category set to imgproc, video
  • Assignee set to Alexander Shishkov

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