Changes between Version 2 and Version 3 of Background_Regeneration

Timestamp:

Dec 14, 2012, 6:43:59 PM (14 years ago)

Author:

watersc1

Comment:

--

Background_Regeneration

@@ -3 +3 @@
 == Status: 2012-12-14 ==
 
-[[Image(model_comp.jpg,400px)]]
+[[Image(model_comp.jpg,800px)]]
+
 Checking the results of the automatically generated background models made it clear that these models were doing more harm than good.  This figure shows the automatic models (top row) along with some manually created models (bottom row).  The large color jumps in the automatic models are on the order of ~100 counts, whereas for the manual models it is less than 10.
 
 The change in the manual models is that each input warp model is matched to the model from the warp with the best zeropoint by measuring the offset and scale necessary for {{{reference = offset + scale * input}}}.  This ensures that the models have similar zeropoints, and prevents the large discontinuities when some inputs are masked.
 
-[[Image(unconvolved_image_comp.jpg,400px)]]
+[[Image(unconvolved_image_comp.jpg,800px)]]
 
 This image shows the input stack (asinh scaling removed) in the top row, along with the background restored version in the bottom row.  The changes are not very dramatic, which is somewhat expected given the reasonably smooth manual background models.