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DOC: Move around plot statements so that all axes are labeled.

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This commit is contained in:
Stefan van der Walt
2011-12-26 02:01:08 -08:00
parent 19fa34f269
commit 4e054fce7c
1 changed files with 6 additions and 4 deletions
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doc/examples/plot_equalize.py
+6 -4
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@@ -22,15 +22,15 @@ def plot_hist(img, bins=256):
"""Plot histogram and cumulative histogram for image"""
img_cdf, bins = exposure.cumulative_distribution(img, bins)
plt.hist(img.ravel(), bins=bins)
plt.ylabel('Number of pixels')
plt.xlabel('Pixel intensiy')
ax_cdf = plt.twinx()
ax_cdf.plot(bins, img_cdf, 'r')
xmin, xmax = dtype_range[img.dtype.type]
plt.xlim(xmin, xmax)
plt.ylabel('# pixels')
plt.xlabel('pixel intensiy')
ax_cdf.set_ylabel('fraction of total intensity')
ax_cdf.set_ylabel('Fraction of total intensity')
img_orig = data.camera()
# squeeze image intensities to lower image contrast
@@ -39,12 +39,14 @@ img_eq = exposure.equalize(img)
plt.subplot(2, 2, 1)
plt.imshow(img, cmap=plt.cm.gray, vmin=0, vmax=255)
plt.title('Low contrast input image')
plt.axis('off')
plt.subplot(2, 2, 2)
plot_hist(img)
plt.subplot(2, 2, 3)
plt.imshow(img_eq, cmap=plt.cm.gray, vmin=0, vmax=1)
plt.title('After\nhistogram equalization')
plt.axis('off')
plt.subplot(2, 2, 4)
plot_hist(img_eq)