A DICOM reader helper function

Python_generators--DICOM_reader--02.py

def read_dicom(inp):
    dicom = pydicom.dcmread(file_path)
    image = dicom.pixel_array

    if image.max() - image.min() > 0:
        image = (image - image.min()) / (image.max() - image.min())

    if dicom.PhotometricInterpretation == 'MONOCHROME1':  
        image = 1 - image

    image = (image * 255).astype(np.uint8)
    
    image = np.nan_to_num(image)

    image_arr[:,:,0] = image//3
    image_arr[:,:,1] = image//3
    image_arr[:,:,2] = image//3
    del image
    image_arr = np.asarray(image_arr, dtype=np.uint8)
    return image_arr