def composite_images_with_alpha()

in data_loader.py [0:0]

• 7 lines of code
• 3 McCabe index (conditional complexity)

def composite_images_with_alpha(image1, image2, alpha, x, y):
    """
    Draw image2 over image1 at location x,y, using alpha as the opacity for image2.

    Modifies image1 in-place
    """
    ch = max(0, min(image1.shape[0] - y, image2.shape[0]))
    cw = max(0, min(image1.shape[1] - x, image2.shape[1]))
    if ch == 0 or cw == 0:
        return
    alpha = alpha[:ch, :cw]
    image1[y:y + ch, x:x + cw, :] = (image1[y:y + ch, x:x + cw, :] * (1 - alpha) + image2[:ch, :cw, :] * alpha).astype(np.uint8)