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Hi,

Im building an Android app, using opencv 3.4.5 version.(with Android studio ).

I have two questions: 1.In openCV 3.4.5, Android package, in the file "MatOfDMatch.java", the following comment apper: "//FIXME: do we need release() here?" Do we need a release in the constructor ?

2.After running the line: orb.detectAndCompute(img1re, new Mat(), kp1, des1);

how can I know how many features found ? numerically, without the draw function ?

*Add a pic displaying 1:

Hi,

Im building an Android app, using opencv 3.4.5 version.(with Android studio ).

I have two questions: 1.In openCV 3.4.5, Android package, in the file "MatOfDMatch.java", the following comment apper: "//FIXME: do we need release() here?" Do we need a release in the constructor ?

2.After running the line: orb.detectAndCompute(img1re, new Mat(), kp1, des1);

how can I know how many features found ? numerically, without the draw function ?

*Add a pic displaying 1:

Hi,

Im building an Android app, using opencv 3.4.5 version.(with Android studio ).

I have two questions: 1.In questions:

1. In openCV 3.4.5, Android package, in the file "MatOfDMatch.java", the following comment apper: "//FIXME: do we need release() here?" here?". Do we need a release in the constructor ?
   ?.

2.After

2. After running the line: orb.detectAndCompute(img1re, *orb.detectAndCompute(img1re, new Mat(), kp1, des1);

how can I know how many features found ? numerically, without the draw function ?

*Add a pic displaying 1:

Hi,

Im building an Android app, using opencv 3.4.5 version.(with Android studio ).

I have two questions:

1. In openCV 3.4.5, Android package, in the file "MatOfDMatch.java", the following comment apper: "//FIXME: do we need release() here?". Do we need a release in the constructor ?.
2. After running the line: *orb.detectAndCompute(img1re, new Mat(), kp1, des1);

how can I know how many features found ? numerically, without the draw function ?