Display image and its color palette in a second window
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.. code-block:: python
   :linenos:
    
    """An example to display both image and its corresponding color palette."""

    import os

    import cv2
    import numpy as np

    from gamebeye.gbcamcolors.color_helpers import hex_to_rgb
    from gamebeye.gbcamimage.gbcamimage import GBCamImage

    input_folder = os.path.join("images", "colorizedImages")
    images_filepath = sorted(
        [os.path.join(input_folder, filename) for filename in os.listdir(input_folder)]
    )

    for image_filepath in images_filepath:
        print(f"Processing {image_filepath}")
        gb_image = GBCamImage()

        # Reading of the file
        gb_image.read(image_filepath)

        # Displaying the colorized image
        image_title = "Colorized image with {} color palette".format(
            gb_image.color_palette.name
        )
        cv2.imshow(image_title, gb_image.data)

        # Create a numpy image with each color of the gb_image color palette
        # Join them to have a 4-elements array to print the color palette
        color_palettes = []
        for color in gb_image.color_palette.value:
            rgb_color = hex_to_rgb(color)
            red = rgb_color[0] * np.ones((112, 128)).astype("uint8")
            green = rgb_color[1] * np.ones((112, 128)).astype("uint8")
            blue = rgb_color[2] * np.ones((112, 128)).astype("uint8")
            color_palettes.append(cv2.merge([blue, green, red]))
        color_palettes = cv2.hconcat(color_palettes)

        color_palette_title = "Color palettes {}".format(gb_image.color_palette.name)
        cv2.imshow(color_palette_title, color_palettes)

        cv2.waitKey()
        cv2.destroyWindow(image_title)
        cv2.destroyWindow(color_palette_title)