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ropensci / opencv

R bindings for OpenCV
https://docs.ropensci.org/opencv
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Is there a SIFT in this package #37

Closed mytarmail closed 2 years ago

mytarmail commented 2 years ago

I have read the package documentation, and did not find anything about the SIFT algorithm https://cran.r-project.org/web/packages/opencv/opencv.pdf but it is definitely in the main library https://docs.opencv.org/4.x/da/df5/tutorial_py_sift_intro.html

_SIFT in OpenCV Now let's see SIFT functionalities available in OpenCV. Note that these were previously only available in the opencv contrib repo, but the patent expired in the year 2020. So they are now included in the main repo. Let's start with keypoint detection and draw them. First we have to construct a SIFT object. We can pass different parameters to it which are optional and they are well explained in docs._

jwijffels commented 2 years ago

There is currently no SIFT in the package. Wasn´t aware that the patent of it has expired? Do you have more proof somewhere of that patent expiration?

FYI, R package image.dlib has SURF and HOG, R package image.CornerDetectionHarris has Harris, this opencv R package has FAST and Harris

mytarmail commented 2 years ago

Hello! Thanks for the quick response. And thanks a lot for the packages listed, I didn't know about them existed.

About the evidence Do you have more proof somewhere of that patent expiration? , I just read it on the site OpenCv pict http://prntscr.com/a0b5VrieXmih