You can easily access columns in the NumPy array with the following code. If you want to learn Python, I highly recommend reading This Book. Method 1: Using Slices In this method, I will use slices to access single, and multiple columns. The index starts from 0. Example 1: Access single column [4 8 6] Example 2: …
The following code can find the unique rows in the NumPy array. If you want to learn Python, I highly recommend reading This Book. In this example, there are 5 rows in the array. 2nd and 3rd rows are duplicates of the 1st row. It will be removed from the array when we find unique rows. Output: …
The example given below will help you to understand the meaning of NumPy reshape -1. If you want to learn Python, I highly recommend reading This Book. Output: [[1 2 3] [4 5 6]] [1 2 3 4 5 6] [[1] [2] [3] [4] [5] [6]] [[1 2] [3 4] [5 6]] People are also reading: Best …
You can check the shape of the NumPy array with the following code. If you want to learn Python, I highly recommend reading This Book. Example 1 Output: (2, 3) Example 2 Output: (1, 2) Example 3 Output: (3,) Example 4 Output: (3, 4) Example 5 Output: (1, 3, 4) People are also reading: Best Python Books …
You can get the dimension of the NumPy array with the following code. If you want to learn Python, I highly recommend reading This Book. Example 1 Output: 1 Example 2 Output: 0 Example 3 Output: 2 Example 4 Output: 3 Example 5 Output: 4 People are also reading: Best Python Books What is Computer Vision? Examples, …
You can convert Pandas DataFrame to NumPy array with the following methods. If you want to learn Python, I highly recommend reading This Book. Method 1 In method 1, I will use the df.to_numpy() method for conversion. Output: column1 column2 column3 row1 5 25 70 row2 10 30 80 row3 15 35 90 [[ 5 25 70] …
You can get indices of n maximum values in a NumPy array with the following code. If you want to learn Python, I highly recommend reading This Book. Example In this example, I will get indices of 4 maximum values of a NumPy array. Output: [0 3 4 2] People are also reading: Best Python Books What …
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You can convert video into black and white using OpenCV (CV2) in Python by following the given code. I highly recommend you get the “Computer Vision: Models, Learning, and Inference Book” to learn Computer Vision. Convert Video into Black and White using CV2 If OpenCV is not installed in your system, then install it using This Method. …
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You can convert color video into grayscale using OpenCV (CV2) in Python by following the given code. I highly recommend you get the “Computer Vision: Models, Learning, and Inference Book” to learn Computer Vision. Convert Color Video into Grayscale using CV2 If OpenCV is not installed in your system, then install it using This Method. After installation, …
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You can convert an image to a NumPy array in Python by following any of the given methods. I highly recommend you get the “Computer Vision: Models, Learning, and Inference Book” to learn Computer Vision. Method 1 In this method, I will use the OpenCV library to convert an image into a NumPy array. If OpenCV is …
