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adding modified files (keras-team#606)
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@sayakpaul
sayakpaul authored Aug 25, 2021
1 parent 75e1b2b commit 36e5c16
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20 changes: 11 additions & 9 deletions examples/vision/handwriting_recognition.py
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"""

"""shell
!wget -q https://git.io/J0fjL -O IAM_Words.zip
!unzip -qq IAM_Words.zip
wget -q https://git.io/J0fjL -O IAM_Words.zip
unzip -qq IAM_Words.zip
!mkdir data
!mkdir data/words
!tar -xf IAM_Words/words.tgz -C data/words
!mv IAM_Words/words.txt data
mkdir data
mkdir data/words
tar -xf IAM_Words/words.tgz -C data/words
mv IAM_Words/words.txt data
"""

"""
Preview how the dataset is organized. Lines prepended by "#" are just metadata information.
"""

"""shell
# Preview how the dataset is organized. Lines prepended by "#"
# are just metadata information.
!head -20 data/words.txt
head -20 data/words.txt
"""

"""
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0 ...tion/handwriting_recognition_27_0 (1).png → ...ognition/handwriting_recognition_28_0.png
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25 changes: 16 additions & 9 deletions examples/vision/ipynb/handwriting_recognition.ipynb
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Expand Up @@ -48,13 +48,22 @@
},
"outputs": [],
"source": [
"!!wget -q https://git.io/J0fjL -O IAM_Words.zip\n",
"!!unzip -qq IAM_Words.zip\n",
"!wget -q https://git.io/J0fjL -O IAM_Words.zip\n",
"!unzip -qq IAM_Words.zip\n",
"!\n",
"!!mkdir data\n",
"!!mkdir data/words\n",
"!!tar -xf IAM_Words/words.tgz -C data/words\n",
"!!mv IAM_Words/words.txt data"
"!mkdir data\n",
"!mkdir data/words\n",
"!tar -xf IAM_Words/words.tgz -C data/words\n",
"!mv IAM_Words/words.txt data"
]
},
{
"cell_type": "markdown",
"metadata": {
"colab_type": "text"
},
"source": [
"Preview how the dataset is organized. Lines prepended by \"#\" are just metadata information."
]
},
{
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},
"outputs": [],
"source": [
"!# Preview how the dataset is organized. Lines prepended by \"#\"\n",
"!# are just metadata information.\n",
"!!head -20 data/words.txt"
"!head -20 data/words.txt"
]
},
{
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106 changes: 52 additions & 54 deletions examples/vision/md/handwriting_recognition.md
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@@ -1,3 +1,4 @@

# Handwriting recognition

**Authors:** [A_K_Nain](https://twitter.com/A_K_Nain), [Sayak Paul](https://twitter.com/RisingSayak)<br>
Expand Down Expand Up @@ -26,47 +27,44 @@ good starting point for building OCR systems.


```python
!!wget -q https://git.io/J0fjL -O IAM_Words.zip
!!unzip -qq IAM_Words.zip
!wget -q https://git.io/J0fjL -O IAM_Words.zip
!unzip -qq IAM_Words.zip
!
!!mkdir data
!!mkdir data/words
!!tar -xf IAM_Words/words.tgz -C data/words
!!mv IAM_Words/words.txt data
!mkdir data
!mkdir data/words
!tar -xf IAM_Words/words.tgz -C data/words
!mv IAM_Words/words.txt data
```


Preview how the dataset is organized. Lines prepended by "#" are just metadata information.


```python
!# Preview how the dataset is organized. Lines prepended by "#"
!# are just metadata information.
!!head -20 data/words.txt
!head -20 data/words.txt
```

<div class="k-default-codeblock">
```
[]
['#--- words.txt ---------------------------------------------------------------#',
'#',
'# iam database word information',
'#',
'# format: a01-000u-00-00 ok 154 1 408 768 27 51 AT A',
'#',
'# a01-000u-00-00 -> word id for line 00 in form a01-000u',
'# ok -> result of word segmentation',
'# ok: word was correctly',
'# er: segmentation of word can be bad',
'#',
'# 154 -> graylevel to binarize the line containing this word',
'# 1 -> number of components for this word',
'# 408 768 27 51 -> bounding box around this word in x,y,w,h format',
'# AT -> the grammatical tag for this word, see the',
'# file tagset.txt for an explanation',
'# A -> the transcription for this word',
'#',
'a01-000u-00-00 ok 154 408 768 27 51 AT A',
'a01-000u-00-01 ok 154 507 766 213 48 NN MOVE']
#--- words.txt ---------------------------------------------------------------#
#
# iam database word information
#
# format: a01-000u-00-00 ok 154 1 408 768 27 51 AT A
#
# a01-000u-00-00 -> word id for line 00 in form a01-000u
# ok -> result of word segmentation
# ok: word was correctly
# er: segmentation of word can be bad
#
# 154 -> graylevel to binarize the line containing this word
# 1 -> number of components for this word
# 408 768 27 51 -> bounding box around this word in x,y,w,h format
# AT -> the grammatical tag for this word, see the
# file tagset.txt for an explanation
# A -> the transcription for this word
#
a01-000u-00-00 ok 154 408 768 27 51 AT A
a01-000u-00-01 ok 154 507 766 213 48 NN MOVE
```
</div>
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```


![png](/img/examples/vision/handwriting_recognition/handwriting_recognition_27_0.png)
![png](/img/examples/vision/handwriting_recognition/handwriting_recognition_28_0.png)


You will notice that the content of original image is kept as faithful as possible and has
Expand Down Expand Up @@ -632,35 +630,35 @@ history = model.fit(
<div class="k-default-codeblock">
```
Epoch 1/10
1357/1357 [==============================] - 110s 65ms/step - loss: 13.6589 - val_loss: 12.1796
Mean edit distance for epoch 1: 20.4730
1357/1357 [==============================] - 89s 51ms/step - loss: 13.6670 - val_loss: 11.8041
Mean edit distance for epoch 1: 20.5117
Epoch 2/10
1357/1357 [==============================] - 64s 47ms/step - loss: 11.0238 - val_loss: 9.9272
Mean edit distance for epoch 2: 20.1453
1357/1357 [==============================] - 48s 36ms/step - loss: 10.6864 - val_loss: 9.6994
Mean edit distance for epoch 2: 20.1167
Epoch 3/10
1357/1357 [==============================] - 63s 46ms/step - loss: 9.4262 - val_loss: 8.3980
Mean edit distance for epoch 3: 19.8384
1357/1357 [==============================] - 48s 35ms/step - loss: 9.0437 - val_loss: 8.0355
Mean edit distance for epoch 3: 19.7270
Epoch 4/10
1357/1357 [==============================] - 63s 46ms/step - loss: 8.0044 - val_loss: 6.6746
Mean edit distance for epoch 4: 19.1790
1357/1357 [==============================] - 48s 35ms/step - loss: 7.6098 - val_loss: 6.4239
Mean edit distance for epoch 4: 19.1106
Epoch 5/10
1357/1357 [==============================] - 63s 46ms/step - loss: 6.7339 - val_loss: 5.5326
Mean edit distance for epoch 5: 18.8079
1357/1357 [==============================] - 48s 35ms/step - loss: 6.3194 - val_loss: 4.9814
Mean edit distance for epoch 5: 18.4894
Epoch 6/10
1357/1357 [==============================] - 62s 46ms/step - loss: 5.8100 - val_loss: 4.7118
Mean edit distance for epoch 6: 18.3978
1357/1357 [==============================] - 48s 35ms/step - loss: 5.3417 - val_loss: 4.1307
Mean edit distance for epoch 6: 18.1909
Epoch 7/10
1357/1357 [==============================] - 63s 47ms/step - loss: 5.1084 - val_loss: 4.1018
Mean edit distance for epoch 7: 18.2252
1357/1357 [==============================] - 48s 35ms/step - loss: 4.6396 - val_loss: 3.7706
Mean edit distance for epoch 7: 18.1224
Epoch 8/10
1357/1357 [==============================] - 62s 46ms/step - loss: 4.5947 - val_loss: 3.7933
Mean edit distance for epoch 8: 18.1273
1357/1357 [==============================] - 48s 35ms/step - loss: 4.1926 - val_loss: 3.3682
Mean edit distance for epoch 8: 17.9387
Epoch 9/10
1357/1357 [==============================] - 63s 46ms/step - loss: 4.2143 - val_loss: 3.4364
Mean edit distance for epoch 9: 17.9910
1357/1357 [==============================] - 48s 36ms/step - loss: 3.8532 - val_loss: 3.1829
Mean edit distance for epoch 9: 17.9074
Epoch 10/10
1357/1357 [==============================] - 62s 46ms/step - loss: 3.9139 - val_loss: 3.2646
Mean edit distance for epoch 10: 17.9137
1357/1357 [==============================] - 49s 36ms/step - loss: 3.5769 - val_loss: 2.9221
Mean edit distance for epoch 10: 17.7960
```
</div>
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```


![png](/img/examples/vision/handwriting_recognition/handwriting_recognition_39_0.png)
![png](/img/examples/vision/handwriting_recognition/handwriting_recognition_40_0.png)


To get better results the model should be trained for at least 50 epochs.
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