examples/pixelArt/combine.py

import cv2
import numpy as np

class combine:
 #Author: Alican Akca
 def __init__(self, size = (400,300),images = [],background_image = None):
 self.size = size
 self.images = images
 self.background_image = background_image

 def combiner(self,images,background_image):
 original = images[0]
 masked = images[1]
 background = cv2.resize(background_image,(images[0].shape[1],images[0].shape[0]))
 result = blend_images_using_mask(original, background, masked)
 return result 

def mix_pixel(pix_1, pix_2, perc):

 return (perc/255 * pix_1) + ((255 - perc)/255 * pix_2)

def blend_images_using_mask(img_orig, img_for_overlay, img_mask):

 if len(img_mask.shape) != 3:
 img_mask = cv2.cvtColor(img_mask, cv2.COLOR_GRAY2BGR)

 img_res = mix_pixel(img_orig, img_for_overlay, img_mask)

 return cv2.cvtColor(img_res.astype(np.uint8), cv2.COLOR_BGR2RGB)