diff --git a/python/imagestack.py b/python/imagestack.py
index 19441b1..831395f 100644
--- a/python/imagestack.py
+++ b/python/imagestack.py
@@ -1,7 +1,7 @@
 import glob
-import imageio
 import numpy
 import progressbar
+import skimage.io
 import skimage.transform
 import os
 
@@ -13,7 +13,7 @@ def load(fmask, dtype=numpy.float32):
         return
     
     #load the first file
-    I = imageio.imread(F[0])
+    I = skimage.io.imread(F[0])
     
     #generate the image stack
     if I.ndim == 3:
@@ -24,7 +24,7 @@ def load(fmask, dtype=numpy.float32):
     bar = progressbar.ProgressBar(max_value=len(F))
     
     for i in range(0, len(F)):
-        I = imageio.imread(F[i])
+        I = skimage.io.imread(F[i])
         S[i, ...] = I
         bar.update(i+1)
         
@@ -41,7 +41,7 @@ def save(I, fname, extension = "bmp"):
     bar = progressbar.ProgressBar(max_value=I.shape[0])
     #save the output files
     for i in range(0, I.shape[0]):        
-        imageio.imwrite(fname + "%03d" % i + "." + extension, I[i, ...])
+        skimage.io.imsave(fname + "%03d" % i + "." + extension, I[i, ...])
         bar.update(i+1)
 
 #rescale a stack of images along X and Y by an integer value n and save to directory dest        
@@ -59,12 +59,12 @@ def resize(fmask, dest, n, outformat=None):
     for i in range(0, len(F)):
         
         #load the file to memory
-        I = imageio.imread(F[i])
+        I = skimage.io.imread(F[i])
         R = skimage.transform.downscale_local_mean(I, (n, n))
         if outformat is None:
-            imageio.imwrite(dest+"/"+os.path.basename(F[i]), R)
+            skimage.io.imwrite(dest+"/"+os.path.basename(F[i]), R)
         else:
-            imageio.imwrite(dest+"/"+os.path.basename(F[i]).split('.')[0] + "." + outformat, R)
+            skimage.io.imwrite(dest+"/"+os.path.basename(F[i]).split('.')[0] + "." + outformat, R)
         bar.update(i+1)
     
     
\ No newline at end of file
diff --git a/python/muve-align.py b/python/muve-align.py
index 61e435a..45816b1 100644
--- a/python/muve-align.py
+++ b/python/muve-align.py
@@ -12,6 +12,7 @@ import cv2
 import progressbar
 import scipy.ndimage
 import sys
+import os
 
 
 def press(event):
@@ -95,22 +96,18 @@ def align(A, B, max_power=5):
         #warp_matrix[0, 2] = 0
     #    return warp_matrix
 
-if len(sys.argv) < 3:
-    print("usage: muve-align input_mask output_directory")
-    print("ex:    muve-align *.bmp ./aligned")
-    return
-
-fmask = sys.argv[1]
-out_dir = sys.argv[2]
+fmask = "Z:/jack/TinkParaffinLung0.005S/*.png"
+out_dir = "Z:/jack/TinkParaffinLung0.005S/aligned"
 
 if not os.path.isdir(out_dir):
     os.mkdir(out_dir)
 
 #read the image stack for alignment
 print("Loading image stack...")
-S = imagestack.load(fmask, dtype=numpy.float32)
+S = imagestack.load(fmask, dtype=numpy.uint8)
+
 #convert to grayscale
-G = imagestack.rgb2gray(S)
+G = imagestack.rgb2gray(S.astype(numpy.float32))
 
 # Define the motion model
 warp_mode = cv2.MOTION_TRANSLATION
--
libgit2 0.21.4