imgcv.transformations.logarithmic

Functions

check_image(image)

Check if the input is a numpy array

logarithmic_transform(image[, c])

Apply logarithmic transformation to the input image

Module Contents

imgcv.transformations.logarithmic.check_image(image)

Check if the input is a numpy array

Parameters:

image (np.ndarray) – Input image to be transformed

Raises:

  • TypeError – If the input is not a numpy array

  • ValueError – If the input is not a grayscale or color image

imgcv.transformations.logarithmic.logarithmic_transform(image, c=1)

Apply logarithmic transformation to the input image

Formula:

s = c * log(1 + r)

Parameters:

  • image (ndarray) – Input image to be transformed

  • c (float) – Constant value to scale the logarithmic transformation

Raises:

  • TypeError – If the input is not a numpy array

  • ValueError – If the input is not a grayscale or color image

Returns:

Transformed image

Return type:

np.ndarray