python将多张图融合与换成二值图

把下面的图片融合，黑色背景保持，剩下的物体画在一起

import os
import cv2
import numpy as np


patha=r"D:gxqcodeweightliftingWeightLiftingCompetitions3145l_line_BW"
pathb=r"D:gxqcodeweightliftingWeightLiftingCompetitions3145l_seg"
pathc=r"D:gxqcodeweightliftingWeightLiftingCompetitions3161700006253759"

newpath=r"D:gxqcodeweightliftingWeightLiftingCompetitions3145c"
if not os.path.exists(newpath):
    os.mkdir(newpath)
print(newpath)

path_lista=os.listdir(patha)
path_lista.sort()
path_lista_len=len(path_lista)

path_listb=os.listdir(pathb)
path_listb.sort()
path_listb_len=len(path_listb)

path_listc=os.listdir(pathc)
path_listc.sort()
path_listc_len=len(path_listc)

len=min(path_lista_len,path_listb_len,path_listc_len)
for k in range(0,len):
    src1=cv2.imread(patha+r"\"+path_lista[k])
    src1=np.array(src1)
    src2=cv2.imread(pathb+r"\"+path_listb[k])
    src2=np.array(src2)
    src3=cv2.imread(pathc+r"\"+path_listc[k])
    src3=np.array(src3)
    w=src1.shape[1]
    h=src1.shape[0]
    print(w,h)
    for i in range(0,h):
        for j in range(0,w):
            b,g,r=src2[i,j]
            if b!=0 and g!=0 and r!=0:
                src1[i][j]=src2[i][j]
            else:
                b,g,r=src3[i,j]
                if b!=0 and g!=0 and r!=0:
                    src1[i][j]=src3[i][j]

    cv2.imwrite(newpath+r"\img_"+str(100000000+k)+".jpg",src1)
    #cv2.imshow('playground',src1)
    #cv2.waitKey()
    #cv.imwrite(newpath+r'\'+portion[0]+'.jpg',src1)

最后的效果如下：

如要将上图变成二值效果，即将黑色的不变，剩余的全部换成白色即可

import os
import cv2
import numpy as np


patha=r"D:gxqcodeweightliftingWeightLiftingCompetitions3169700006253759"
newpath=r"D:gxqcodeweightliftingWeightLiftingCompetitions31691"
if not os.path.exists(newpath):
    os.mkdir(newpath)
print(newpath)

path_lista=os.listdir(patha)
path_lista.sort()
path_lista_len=len(path_lista)


for k in range(0,path_lista_len):
    src1=cv2.imread(patha+r"\"+path_lista[k])
    src1=np.array(src1)
    w=src1.shape[1]
    h=src1.shape[0]
    print(w,h)
    for i in range(0,h):
        for j in range(0,w):
            b,g,r=src1[i,j]
            #if not(all(src1[i,j]==[0,0,0])):
            if b!=0 and g!=0 and r!=0:
                src1[i][j]=[255,255,255]
    cv2.imwrite(newpath+r"\img_"+str(100000000+k)+".jpg",src1)

效果如下