python - Matplotlib rotate image file by X degrees

Python - Matplotlib rotate image file by X degrees

To rotate an image file by a certain angle using Matplotlib in Python, you can use the imread function from Matplotlib to read the image, and then use the imshow function to display and rotate the image. Finally, you can use the savefig function to save the rotated image. Here's an example:

import matplotlib.pyplot as plt from matplotlib import image as mpimg import numpy as np def rotate_image(input_path, output_path, angle): # Read the image img = mpimg.imread(input_path) # Rotate the image rotated_img = np.rot90(img, k=int(angle / 90), axes=(0, 1)) # Display the rotated image (optional) plt.imshow(rotated_img) plt.show() # Save the rotated image plt.imsave(output_path, rotated_img) # Example usage input_image_path = 'path/to/your/image.jpg' output_image_path = 'path/to/your/rotated_image.jpg' rotation_angle = 45 rotate_image(input_image_path, output_image_path, rotation_angle)

Make sure to replace 'path/to/your/image.jpg' with the actual path to your input image file and 'path/to/your/rotated_image.jpg' with the desired path for the rotated image. Adjust the rotation_angle variable based on the angle you want to rotate the image.

Note that this example rotates the image by a multiple of 90 degrees using the np.rot90 function. If you need to rotate the image by an arbitrary angle, you may consider using the rotate function from the scipy.ndimage module.

Examples

  1. Python code to rotate an image file by X degrees using Matplotlib.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = 45 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

  2. Rotate an image file by a specified angle using Matplotlib in Python.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = 90 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

  3. Python script to rotate an image file by X degrees clockwise with Matplotlib.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = -60 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

  4. Rotate an image file by a specific angle in the counterclockwise direction using Matplotlib.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = -30 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

  5. How to use Matplotlib to rotate an image file by X degrees in Python?

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = 180 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

  6. Python code to rotate an image file by X degrees with specified interpolation using Matplotlib.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = 90 interpolation_method = 'nearest' # or 'bilinear', 'spline16', etc. img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False, order=3, mode=interpolation_method) plt.imshow(rotated_img) plt.show()

  7. Rotate an image file by X degrees and display the result using Matplotlib in Python.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = 45 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

  8. Python script to rotate an image file by X degrees with Matplotlib and save the result.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = -30 save_path = 'path/to/save/rotated_image.jpg' img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.savefig(save_path)

  9. Rotate an image file by X degrees with Matplotlib and apply anti-aliasing.

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.jpg' degrees = 60 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False, order=3, mode='constant', cval=1, prefilter=True) plt.imshow(rotated_img) plt.show()

  10. How to rotate an image file by X degrees using Matplotlib with a transparent background?

    import matplotlib.pyplot as plt from matplotlib import image as mpimg from scipy.ndimage import rotate image_path = 'path/to/your/image.png' degrees = 45 img = mpimg.imread(image_path) rotated_img = rotate(img, degrees, reshape=False) plt.imshow(rotated_img) plt.show()

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