twocan.stretch_255

twocan.stretch_255(image: ndarray) → ndarray

Convert an image to 8-bit grayscale by stretching its range to [0, 255].

This function linearly stretches the intensity values of an image to span the full 8-bit range [0, 255]. If the input image has zero maximum value, the original image is returned unchanged.

Parameters:

image (np.ndarray) – Input image array of any shape and dtype.

Returns:

8-bit grayscale image with values in [0, 255] and dtype uint8. Returns original image unchanged if max value is 0.

Return type:

np.ndarray