import cv2
import numpy
import glob
import os

dir = "." # current directory
ext = ".jpg" # whatever extension you want

pathname = os.path.join(dir, "*" + ext)
images = [cv2.imread(img) for img in glob.glob(pathname)]

height = sum(image.shape[0] for image in images)
width = max(image.shape[1] for image in images)
output = numpy.zeros((height,width,3))

y = 0
for image in images:
    h,w,d = image.shape
    output[y:y+h,0:w] = image
    y += h

cv2.imwrite("test.jpg", output)

pathname = os.path.join(dir, "*" + ext)
images = [cv2.imread(img) for img in glob.glob(pathname)]
names = [img for img in glob.glob(pathname)]
#Get filenames from paths
files = [re.sub("/.*/", "", x) for x in names]
#Get positions
position = [re.sub(".jpeg", "", x) for x in files]
#Get hight position and tranform to int
height = [re.sub("_.*", "", x) for x in position]
height2 = [int(i) for i in height]
#Get width position and tranform to int
width = [re.sub(".*_", "", x) for x in position]
width2 = [int(i) for i in width]
#Generate background image
height_tot = 280*max(height2) #All images are 280*280
width_tot = 280*max(width2)
output = numpy.zeros((height_tot,width_tot,3))
#Locate images
for name, image in zip(names,images):
        files = re.sub("/.*/", "", name)
        position = re.sub(".jpeg", "", files)
        height = re.sub("_.*", "", position)
        width = re.sub(".*_", "", position)
        output[height:height+280,width:width+280] = image
cv2.imwrite("test.jpg", output)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-35-f789f37a8386> in <module>()
      5     height = re.sub("_.*", "", position)
      6     width = re.sub(".*_", "", position)
----> 7     output[height:height+280,width:width+280] = image
      8
      9 cv2.imwrite("test.jpg", output)

TypeError: must be str, not int

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-40-a7771bda9221> in <module>()
      5     height = re.sub("_.*", "", position)
      6     width = re.sub(".*_", "", position)
----> 7     output[str(height):str(height+280),str(width):str(width+280)] = image
      8
      9 cv2.imwrite("test.jpg", output)

TypeError: must be str, not int