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author | Navan Chauhan <navanchauhan@gmail.com> | 2021-05-26 23:58:29 +0530 |
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committer | Navan Chauhan <navanchauhan@gmail.com> | 2021-05-26 23:58:29 +0530 |
commit | bfd3a825c2d73bd842769cdfaf11ad0319a3bd6e (patch) | |
tree | 7b2c052bdf539f433ed3ab6bd133b6d46c7ff7e5 /Content/posts/2019-12-10-TensorFlow-Model-Prediction.md | |
parent | 2cb28c0dd749611e6edd4688955769bda3381453 (diff) |
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diff --git a/Content/posts/2019-12-10-TensorFlow-Model-Prediction.md b/Content/posts/2019-12-10-TensorFlow-Model-Prediction.md new file mode 100644 index 0000000..cafa026 --- /dev/null +++ b/Content/posts/2019-12-10-TensorFlow-Model-Prediction.md @@ -0,0 +1,60 @@ +--- +date: 2019-12-10 11:10 +description: Making predictions for image classification models built using TensorFlow +tags: Tutorial, Tensorflow, Code-Snippet +--- + +# Making Predictions using Image Classifier (TensorFlow) + +*This was tested on TF 2.x and works as of 2019-12-10* + +If you want to understand how to make your own custom image classifier, please refer to my previous post. + +If you followed my last post, then you created a model which took an image of dimensions 50x50 as an input. + +First we import the following if we have not imported these before + +```python +import cv2 +import os +``` + +Then we read the file using OpenCV. + +```python +image=cv2.imread(imagePath) +``` + +The cv2. imread() function returns a NumPy array representing the image. Therefore, we need to convert it before we can use it. + +```python +image_from_array = Image.fromarray(image, 'RGB') +``` + +Then we resize the image + +```python +size_image = image_from_array.resize((50,50)) +``` + +After this we create a batch consisting of only one image + +```python +p = np.expand_dims(size_image, 0) +``` + +We then convert this uint8 datatype to a float32 datatype + +```python +img = tf.cast(p, tf.float32) +``` + +Finally we make the prediction + +```python +print(['Infected','Uninfected'][np.argmax(model.predict(img))]) +``` + +`Infected` + + |