compute-image-windows | Windows agents and scripts for Google Compute Engine images | Crawler library

def ssim(img1,
         img2,
         max_val,
         filter_size=11,
         filter_sigma=1.5,
         k1=0.01,
         k2=0.03):
  """Computes SSIM index between img1 and img2.

  This function is based on the standard SSIM implementation fro  

def psnr(a, b, max_val, name=None):
  """Returns the Peak Signal-to-Noise Ratio between a and b.

  This is intended to be used on signals (or images). Produces a PSNR value for
  each image in batch.

  The last three dimensions of input are expecte  

def mean_threshold(image: Image) -> Image:
    """
    image: is a grayscale PIL image object
    """
    height, width = image.size
    mean = 0
    pixels = image.load()
    for i in range(width):
        for j in range(height):
            pixe