Data Science and Machine Learning (Theory and Projects) A to Z - Feature Engineering: Image Features

The video tutorial discusses image features, starting with the basics of image capturing and pixel resolution. It explains the process of quantizing images and the differences between RGB and grayscale images. The tutorial then covers how to flatten images into feature vectors and highlights the limitations of using raw intensity features. Advanced feature extraction techniques, such as convolutional neural networks, are introduced. A practical example in Jupyter demonstrates how to flatten an image using Matplotlib.

What is the process that occurs when light hits a photosensitive sensor in a camera?

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Explain the concept of quantization in image processing.

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What are the three filters used in RGB image capturing?

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Describe how a grayscale image is represented in terms of pixel values.

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What is the significance of flattening an image into a feature vector?

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How do convolutional neural networks improve feature extraction compared to raw intensity features?

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What are derived features and how do they relate to raw features in machine learning?

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