Daisy and Latch Descriptor Missing- Python 2.7.10 (Bug #4470)

Added by Phil K over 9 years ago. Updated over 9 years ago.

Status:Done Start date:2015-07-08
Priority:Normal Due date:
Assignee:- % Done:

0%
Category:-
Target version:-
Affected version:branch 'master' (3.0-dev) Operating System:Any
Difficulty: HW Platform:x64
Pull request:https://github.com/Itseez/opencv_contrib/pull/296

Description

I have installed OpenCV3 with the contrib-repo for Python 2.7.10 but the Daisy and Latch modules are not available.

SIFT, SURF, FREAK etc are fine,

I have tried the fix as per
https://github.com/Itseez/opencv_contrib/compare/master...berak:patch-1

but it didn't work.

The .cpp files are in the contrib-repo, are the algorithms not available in python yet?

History

#1
Updated by be rak over 9 years ago

apologies for the sloppiness there, this attempt indeed won't work.

both DAISY and LATCH inherit from `DescriptorExtractor` (which is a typedef for Feature2D, but not exposed to scripting) so it errors:

Generator error: unable to resolve base xfeatures2d_DescriptorExtractor for xfeatures2d_DAISY

changing the interface to Features2D (like all other classes do) will make it work:

>>> help(cv2.xfeatures2d)
Help on module cv2.xfeatures2d in cv2:

NAME
    cv2.xfeatures2d

FILE
    (built-in)

FUNCTIONS
    DAISY_create(...)
        DAISY_create([, radius[, q_radius[, q_theta[, q_hist[, norm[, H[, interp
olation[, use_orientation]]]]]]]]) -> retval

    FREAK_create(...)
        FREAK_create([, orientationNormalized[, scaleNormalized[, patternScale[,
 nOctaves[, selectedPairs]]]]]) -> retval

    LATCH_create(...)
        LATCH_create([, bytes[, rotationInvariance[, half_ssd_size]]]) -> retval

    LUCID_create(...)
        LUCID_create(lucid_kernel, blur_kernel) -> retval

corrected pr here: https://github.com/Itseez/opencv_contrib/pull/296

#2
Updated by Alexander Alekhin over 9 years ago

  • Status changed from New to Done
  • Pull request set to https://github.com/Itseez/opencv_contrib/pull/296

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