Affine transform

Warping and affine transforms of images.

../../../_images/plot_features_1.png

Python source code: plot_features.py

from matplotlib import pyplot as plt



from skimage import data

from skimage.feature import corner_harris, corner_subpix, corner_peaks

from skimage.transform import warp, AffineTransform





tform = AffineTransform(scale=(1.3, 1.1), rotation=1, shear=0.7,

                        translation=(210, 50))

image = warp(data.checkerboard(), tform.inverse, output_shape=(350, 350))



coords = corner_peaks(corner_harris(image), min_distance=5)

coords_subpix = corner_subpix(image, coords, window_size=13)



plt.gray()

plt.imshow(image, interpolation='nearest')

plt.plot(coords_subpix[:, 1], coords_subpix[:, 0], '+r', markersize=15, mew=5)

plt.plot(coords[:, 1], coords[:, 0], '.b', markersize=7)

plt.axis('off')

plt.show()

Total running time of the example: 0.12 seconds ( 0 minutes 0.12 seconds)