(image, delta)
Adjust the brightness of RGB or Grayscale images.

  This is a convenience method that converts an RGB image to float
  representation, adjusts its brightness, and then converts it back to the
  original data type. If several adjustments are chained it is advisable to
  minimize the number of redundant conversions.

  The value `delta` is added to all components of the tensor `image`. Both
  `image` and `delta` are converted to `float` before adding (and `image` is
  scaled appropriately if it is in fixed-point representation). For regular
  images, `delta` should be in the range `[0,1)`, as it is added to the image in
  floating point representation, where pixel values are in the `[0,1)` range.

  Args:
    image: A tensor.
    delta: A scalar. Amount to add to the pixel values.

  Returns:
    A brightness-adjusted tensor of the same shape and type as `image`.
Adjust the brightness of RGB or Grayscale images.
Adjust the brightness of RGB or Grayscale images .
def adjust_brightness(image, delta):
  """Adjust the brightness of RGB or Grayscale images.

  This is a convenience method that converts an RGB image to float
  representation, adjusts its brightness, and then converts it back to the
  original data type. If several adjustments are chained it is advisable to
  minimize the number of redundant conversions.

  The value `delta` is added to all components of the tensor `image`. Both
  `image` and `delta` are converted to `float` before adding (and `image` is
  scaled appropriately if it is in fixed-point representation). For regular
  images, `delta` should be in the range `[0,1)`, as it is added to the image in
  floating point representation, where pixel values are in the `[0,1)` range.

  Args:
    image: A tensor.
    delta: A scalar. Amount to add to the pixel values.

  Returns:
    A brightness-adjusted tensor of the same shape and type as `image`.
  """
  with ops.name_scope(None, 'adjust_brightness', [image, delta]) as name:
    image = ops.convert_to_tensor(image, name='image')
    # Remember original dtype to so we can convert back if needed
    orig_dtype = image.dtype
    flt_image = convert_image_dtype(image, dtypes.float32)

    adjusted = math_ops.add(flt_image,
                            math_ops.cast(delta, dtypes.float32),
                            name=name)

    return convert_image_dtype(adjusted, orig_dtype, saturate=True)
def adjust_brightness ( image , delta ) : with ops . name_scope ( None , 'adjust_brightness' , [ image , delta ] ) as name : image = ops . convert_to_tensor ( image , name = 'image' ) # Remember original dtype to so we can convert back if needed orig_dtype = image . dtype flt_image = convert_image_dtype ( image , dtypes . float32 ) adjusted = math_ops . add ( flt_image , math_ops . cast ( delta , dtypes . float32 ) , name = name ) return convert_image_dtype ( adjusted , orig_dtype , saturate = True )