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Add mesh points to plot

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This commit is contained in:
Johannes Schönberger
2012-09-03 23:06:59 +02:00
parent 53edb67dd3
commit aff606998e
1 changed files with 6 additions and 3 deletions
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doc/examples/plot_piecewise_affine.py
+6 -3
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@@ -16,7 +16,7 @@ image = data.lena()
rows, cols = image.shape[0], image.shape[1]
src_cols = np.linspace(0, cols, 20)
src_rows = np.linspace(0, rows, 20)
src_rows = np.linspace(0, rows, 10)
src_rows, src_cols = np.meshgrid(src_rows, src_cols)
src = np.dstack([src_cols.flat, src_rows.flat])[0]
@@ -31,8 +31,11 @@ dst = np.vstack([dst_cols, dst_rows]).T
tform = PiecewiseAffineTransform()
tform.estimate(src, dst)
output_shape = (image.shape[0] - 1.5 * 50, image.shape[1])
out = warp(image, tform, output_shape=output_shape)
out_rows = image.shape[0] - 1.5 * 50
out_cols = cols
out = warp(image, tform, output_shape=(out_rows, out_cols))
plt.imshow(out)
plt.plot(tform.inverse(src)[:, 0], tform.inverse(src)[:, 1], '.b')
plt.axis((0, out_cols, out_rows, 0))
plt.show()