Update app.py

app.py

@@ -121,7 +121,7 @@ def cellpose_segment(img_input):
     outpix = plot_outlines(img_input, masks)
     overlay = plot_overlay(img_input, masks)
 
-    crand = .2 + .8 * np.random.rand(np.max(masks.flatten()).astype('int')+1, 'float32')
+    crand = .2 + .8 * np.random.rand(np.max(masks.flatten()).astype('int')+1,).astype('float32')
     crand[0] = 0
 
     overlay = Image.fromarray(overlay)