python Programming Glossary: np.matrix

http://stackoverflow.com/questions/10508021/matrix-multiplication-in-python

numpy as np # I want to check my solution with numpy mx np.matrix 1 2 3 4 5 6 7 8 9 10 11 12 my np.matrix 1 2 1 2 3 4 Result matmult.. with numpy mx np.matrix 1 2 3 4 5 6 7 8 9 10 11 12 my np.matrix 1 2 1 2 3 4 Result matmult x y 12 18 27 42 42 66 57 90 mx my..

Numpy Matrix class: Default constructor attributes for inherited class

http://stackoverflow.com/questions/13144512/numpy-matrix-class-default-constructor-attributes-for-inherited-class

That's what I did import numpy as np class MyMatrix np.matrix def __init__ self super MyMatrix self .__init__ 1 2 3 4 if __name__.. in this code since I keep getting this error this_matrix np.matrix TypeError __new__ takes at least 2 arguments 1 given I'm really.. question From looking at the source it seems as though np.matrix sets the data argument in __new__ not in __init__ . This is..

Calculate camera world position with OpenCV Python

http://stackoverflow.com/questions/14444433/calculate-camera-world-position-with-opencv-python

Python Opencv SolvePnP yields wrong translation vector

http://stackoverflow.com/questions/14515200/python-opencv-solvepnp-yields-wrong-translation-vector

in the object world co ords I believe you need to do ` np.matrix rotation_matrix .T np.matrix tvecs_new ` And you can get the.. I believe you need to do ` np.matrix rotation_matrix .T np.matrix tvecs_new ` And you can get the Euler angles using cv2.decomposeProjectionMatrix..

Rotate image and crop out black borders

http://stackoverflow.com/questions/16702966/rotate-image-and-crop-out-black-borders

transformation matrix for a 2D translation of dx dy return np.matrix 1 0 dx 0 1 dy 0 0 1 def rotateImage image angle Rotates the.. image_size 0 0.5 h2 image_size 1 0.5 rot_mat_notranslate np.matrix rot_mat 0 2 0 2 tl np.array w2 h2 rot_mat_notranslate .A 0 tr.. h2 trans_mat getTranslationMatrix2d dx dy affine_mat np.matrix trans_mat np.matrix rot_mat 0 2 result cv2.warpAffine image..