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diff --git a/computer_vision/color_augmentation.py b/computer_vision/color_augmentation.py
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+import cv2
+import numpy as np
+
+"""
+Color Augmentation Module for Computer Vision
+
+This module provides various color space augmentation techniques commonly used
+in computer vision and deep learning for data augmentation during model training.
+
+Reference: https://en.wikipedia.org/wiki/Data_augmentation
+"""
+
+
+def brightness_adjustment(image: np.ndarray, factor: float = 1.0) -> np.ndarray:
+    """
+    Adjust image brightness by modifying the V channel in HSV color space.
+
+    Args:
+        image: Input image in BGR format
+        factor: Brightness multiplication factor (
+            0.0 = black, 1.0 = original, >1.0 = brighter
+        )
+
+    Returns:
+        Brightness adjusted image in BGR format
+
+    Raises:
+        ValueError: If brightness factor is negative
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = brightness_adjustment(img, factor=1.2)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    if factor < 0:
+        raise ValueError("Brightness factor must be non-negative")
+
+    hsv = cv2.cvtColor(image, cv2.COLOR_BGR2HSV).astype(np.float32)
+    hsv[:, :, 2] = np.clip(hsv[:, :, 2] * factor, 0, 255)
+    return cv2.cvtColor(hsv.astype(np.uint8), cv2.COLOR_HSV2BGR)
+
+
+def contrast_adjustment(image: np.ndarray, factor: float = 1.0) -> np.ndarray:
+    """
+    Adjust image contrast by scaling pixel values around the mean.
+
+    Args:
+        image: Input image in BGR format
+        factor: Contrast factor (0.0 = gray, 1.0 = original, >1.0 = more contrast)
+
+    Returns:
+        Contrast adjusted image in BGR format
+
+    Raises:
+        ValueError: If contrast factor is negative
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = contrast_adjustment(img, factor=1.5)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    if factor < 0:
+        raise ValueError("Contrast factor must be non-negative")
+
+    mean = np.mean(image, axis=(0, 1), keepdims=True)
+    adjusted = mean + factor * (image - mean)
+    return np.clip(adjusted, 0, 255).astype(np.uint8)
+
+
+def saturation_adjustment(image: np.ndarray, factor: float = 1.0) -> np.ndarray:
+    """
+    Adjust image saturation by modifying the S channel in HSV color space.
+
+    Args:
+        image: Input image in BGR format
+        factor: Saturation factor
+            (0.0 = grayscale, 1.0 = original, >1.0 = more saturated)
+
+    Returns:
+        Saturation adjusted image in BGR format
+
+    Raises:
+        ValueError: If saturation factor is negative
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = saturation_adjustment(img, factor=1.3)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    if factor < 0:
+        raise ValueError("Saturation factor must be non-negative")
+
+    hsv = cv2.cvtColor(image, cv2.COLOR_BGR2HSV).astype(np.float32)
+    hsv[:, :, 1] = np.clip(hsv[:, :, 1] * factor, 0, 255)
+    return cv2.cvtColor(hsv.astype(np.uint8), cv2.COLOR_HSV2BGR)
+
+
+def hue_shift(image: np.ndarray, shift: int = 0) -> np.ndarray:
+    """
+    Shift the hue channel in HSV color space.
+
+    Args:
+        image: Input image in BGR format
+        shift: Hue shift value in degrees (-180 to 180)
+
+    Returns:
+        Hue shifted image in BGR format
+
+    Raises:
+        ValueError: If hue shift is outside valid range
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = hue_shift(img, shift=30)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    if not -180 <= shift <= 180:
+        raise ValueError("Hue shift must be between -180 and 180")
+
+    hsv = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
+    hsv = hsv.astype(np.int16)
+    hsv[:, :, 0] = (hsv[:, :, 0] + shift) % 180
+    hsv = hsv.astype(np.uint8)
+    return cv2.cvtColor(hsv, cv2.COLOR_HSV2BGR)
+
+
+def gamma_correction(image: np.ndarray, gamma: float = 1.0) -> np.ndarray:
+    """
+    Apply gamma correction to adjust image brightness non-linearly.
+
+    Reference: https://en.wikipedia.org/wiki/Gamma_correction
+
+    Args:
+        image: Input image in BGR format
+        gamma: Gamma value (< 1.0 = brighter, 1.0 = no change, > 1.0 = darker)
+
+    Returns:
+        Gamma corrected image in BGR format
+
+    Raises:
+        ValueError: If gamma is not positive
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = gamma_correction(img, gamma=1.5)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    if gamma <= 0:
+        raise ValueError("Gamma must be positive")
+
+    inv_gamma = 1.0 / gamma
+    table = np.array([((i / 255.0) ** inv_gamma) * 255 for i in range(256)]).astype(
+        np.uint8
+    )
+    return cv2.LUT(image, table)
+
+
+def histogram_equalization(
+    image: np.ndarray, clip_limit: float = 2.0, tile_grid_size: tuple[int, int] = (8, 8)
+) -> np.ndarray:
+    """
+    Apply CLAHE (Contrast Limited Adaptive Histogram Equalization).
+
+    This technique improves contrast by equalizing the histogram in localized regions.
+    Reference: https://en.wikipedia.org/wiki/Adaptive_histogram_equalization
+
+    Args:
+        image: Input image in BGR format
+        clip_limit: Threshold for contrast limiting
+        tile_grid_size: Size of grid for histogram equalization
+
+    Returns:
+        Equalized image in BGR format
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = histogram_equalization(img)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    lab = cv2.cvtColor(image, cv2.COLOR_BGR2LAB)
+    clahe = cv2.createCLAHE(clipLimit=clip_limit, tileGridSize=tile_grid_size)
+    lab[:, :, 0] = clahe.apply(lab[:, :, 0])
+    return cv2.cvtColor(lab, cv2.COLOR_LAB2BGR)
+
+
+def channel_shuffle(image: np.ndarray) -> np.ndarray:
+    """
+    Randomly shuffle color channels (B, G, R) for data augmentation.
+
+    Args:
+        image: Input image in BGR format
+
+    Returns:
+        Channel shuffled image
+
+    Examples:
+        >>> import numpy as np
+        >>> np.random.seed(42)
+        >>> img = np.random.randint(0, 255, (50, 50, 3), dtype=np.uint8)
+        >>> result = channel_shuffle(img)
+        >>> result.shape
+        (50, 50, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    channels = list(cv2.split(image))
+    rng = np.random.default_rng()
+    rng.shuffle(channels)
+    return cv2.merge(channels)
+
+
+def grayscale_conversion(image: np.ndarray, keep_channels: bool = True) -> np.ndarray:
+    """
+    Convert image to grayscale using standard luminosity formula.
+
+    Reference: https://en.wikipedia.org/wiki/Grayscale
+
+    Args:
+        image: Input image in BGR format
+        keep_channels: If True, return 3-channel grayscale, else single channel
+
+    Returns:
+        Grayscale image (3-channel if keep_channels=True, else 1-channel)
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = grayscale_conversion(img, keep_channels=True)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result = grayscale_conversion(img, keep_channels=False)
+        >>> result.shape
+        (100, 100)
+    """
+    gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
+    if keep_channels:
+        return cv2.cvtColor(gray, cv2.COLOR_GRAY2BGR)
+    return gray
+
+
+def temperature_tint(
+    image: np.ndarray, temperature: float = 0.0, tint: float = 0.0
+) -> np.ndarray:
+    """
+    Adjust color temperature and tint of an image.
+
+    Temperature affects the blue-red balance, while tint affects the
+    green-magenta balance.
+
+    Args:
+        image: Input image in BGR format
+        temperature: Temperature adjustment (
+            -1.0 to 1.0, negative = cooler, positive = warmer
+        )
+        tint: Tint adjustment (
+            -1.0 to 1.0, negative = green, positive = magenta
+        )
+
+    Returns:
+        Adjusted image in BGR format
+
+    Examples:
+        >>> import numpy as np
+        >>> img = np.random.randint(0, 255, (100, 100, 3), dtype=np.uint8)
+        >>> result = temperature_tint(img, temperature=0.5, tint=0.2)
+        >>> result.shape
+        (100, 100, 3)
+        >>> result.dtype
+        dtype('uint8')
+    """
+    result = image.astype(np.float32)
+
+    # Temperature: affect blue and red channels
+    if temperature > 0:  # Warmer
+        result[:, :, 2] = np.clip(result[:, :, 2] * (1 + temperature * 0.3), 0, 255)
+        result[:, :, 0] = np.clip(result[:, :, 0] * (1 - temperature * 0.3), 0, 255)
+    else:  # Cooler
+        result[:, :, 0] = np.clip(result[:, :, 0] * (1 - temperature * 0.3), 0, 255)
+        result[:, :, 2] = np.clip(result[:, :, 2] * (1 + temperature * 0.3), 0, 255)
+
+    # Tint: affect green channel
+    result[:, :, 1] = np.clip(result[:, :, 1] * (1 + tint * 0.3), 0, 255)
+
+    return result.astype(np.uint8)
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()