質問編集履歴
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#import the necessary packages
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compare_images(original, shopped, "Original vs. Photoshopped")
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```
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### 発生している問題・エラーメッセージ
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```
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ImportError: cannot import name structural_similarity
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###ソースコード
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'''
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#import the necessary packages
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compare_images(original, shopped, "Original vs. Photoshopped")
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'''
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###
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### 発生している問題・エラーメッセージ
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'''
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from skimage.measure import structural_similarity as ssim
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ImportError: cannot import name structural_similarity
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'''
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ソースコードの表示がおかしかったのでその変更
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###ソースコード
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#import the necessary packages
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from skimage.measure import structural_similarity as ssim
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import matplotlib.pyplot as plt
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import numpy as np
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import cv2
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%matplotlib inline
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def mse(imageA, imageB):
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#the 'Mean Squared Error' between the two images is the
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#sum of the squared difference between the two images;
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#NOTE: the two images must have the same dimension
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err = np.sum((imageA.astype("float") - imageB.astype("float")) ** 2)
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err /= float(imageA.shape[0] * imageA.shape[1])
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#return the MSE, the lower the error, the more "similar"
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#the two images are
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return err
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def compare_images(imageA, imageB, title):
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#compute the mean squared error and structural similarity
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#index for the images
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m = mse(imageA, imageB)
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s = ssim(imageA, imageB)
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#setup the figure
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fig = plt.figure(title)
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plt.suptitle("MSE: %.2f, SSIM: %.2f" % (m, s))
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#show first image
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ax = fig.add_subplot(1, 2, 1)
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plt.imshow(imageA, cmap = plt.cm.gray)
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plt.axis("off")
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#show the second image
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ax = fig.add_subplot(1, 2, 2)
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plt.imshow(imageB, cmap = plt.cm.gray)
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plt.axis("off")
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#show the images
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plt.show()
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#load the images -- the original, the original + contrast,
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#and the original + photoshop
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original = cv2.imread("resize/re_pic006.jpg")
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contrast = cv2.imread("resize/re_pic005.jpg")
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shopped = cv2.imread("resize/re_pic003.jpg")
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#convert the images to grayscale
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original = cv2.cvtColor(original, cv2.COLOR_BGR2GRAY)
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contrast = cv2.cvtColor(contrast, cv2.COLOR_BGR2GRAY)
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shopped = cv2.cvtColor(shopped, cv2.COLOR_BGR2GRAY)
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#initialize the figure
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fig = plt.figure("Images")
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images = ("Original", original), ("Contrast", contrast), ("Photoshopped", shopped)
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#loop over the images
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for (i, (name, image)) in enumerate(images):
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#show the image
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ax = fig.add_subplot(1, 3, i + 1)
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ax.set_title(name)
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plt.imshow(image, cmap = plt.cm.gray)
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plt.axis("off")
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#show the figure
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plt.show()
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#compare the images
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compare_images(original, original, "Original vs. Original")
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compare_images(original, contrast, "Original vs. Contrast")
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compare_images(original, shopped, "Original vs. Photoshopped")
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###
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###
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### やったこと
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上記のページの「以下は、類似度計算の実行用コードとなります。」
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以降のプログラムを実行した際
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以降のプログラムを実行した際、
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エラーを吐いたところをコメント化して実行したら
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以下のようなエラーが起こりました。
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from skimage.measure import structural_similarity as ssim
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ImportError: cannot import name 'structural_similarity' from 'skimage.measure' (C:\Anaconda3\envs\nnabla\lib\site-packages\skimage\measure\__init__.py)
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### 該当のソースコード
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# import the necessary packages
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from skimage.measure import structural_similarity as ssim
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import matplotlib.pyplot as plt
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import numpy as np
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import cv2
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#matplotlib inline
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↑最初は%matplotlib inlineでした。
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そして実行するとinvalid syntaxエラーが起きました。
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def mse(imageA, imageB):
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# the 'Mean Squared Error' between the two images is the
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# sum of the squared difference between the two images;
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# NOTE: the two images must have the same dimension
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err = np.sum((imageA.astype("float") - imageB.astype("float")) ** 2)
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err /= float(imageA.shape[0] * imageA.shape[1])
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# return the MSE, the lower the error, the more "similar"
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# the two images are
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return err
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def compare_images(imageA, imageB, title):
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# index for the images
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m = mse(imageA, imageB)
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s = ssim(imageA, imageB)
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# setup the figure
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fig = plt.figure(title)
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plt.suptitle("MSE: %.2f, SSIM: %.2f" % (m, s))
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# show first image
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ax = fig.add_subplot(1, 2, 1)
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plt.imshow(imageA, cmap = plt.cm.gray)
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ax = fig.add_subplot(1, 2, 2)
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plt.imshow(imageB, cmap = plt.cm.gray)
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# show the images
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plt.show()
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original = cv2.imread("resize/re_pic006.jpg")
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contrast = cv2.imread("resize/re_pic005.jpg")
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shopped = cv2.imread("resize/re_pic003.jpg")
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original = cv2.cvtColor(original, cv2.COLOR_BGR2GRAY)
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contrast = cv2.cvtColor(contrast, cv2.COLOR_BGR2GRAY)
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shopped = cv2.cvtColor(shopped, cv2.COLOR_BGR2GRAY)
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# initialize the figure
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fig = plt.figure("Images")
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images = ("Original", original), ("Contrast", contrast), ("Photoshopped", shopped)
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# loop over the images
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for (i, (name, image)) in enumerate(images):
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# show the image
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ax = fig.add_subplot(1, 3, i + 1)
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ax.set_title(name)
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plt.imshow(image, cmap = plt.cm.gray)
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plt.axis("off")
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# show the figure
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plt.show()
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# compare the images
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compare_images(original, original, "Original vs. Original")
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compare_images(original, contrast, "Original vs. Contrast")
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compare_images(original, shopped, "Original vs. Photoshopped")
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### 試したこと
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@@ -192,10 +182,14 @@
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なので#でコメント化した。
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python3.7でやっていたので元ページと同じくpython2.7にした。
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### 補足情報(FW/ツールのバージョンなど)
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pip install ssimをやって、
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ssim-0.2.2
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をインストールした。
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