Results
In some cases it might be difficult to notice the subtle differences between the results. Here we allow to compare between the automatic multi-operator results and those of single operators and our user study. Simply hover the mouse over a thumbnail image to switch the retarget display to the corresponding result.

The following have been used for abbreviation:
N-mixed: N-operator mixed path; N-regular: N-operator regular path.
Please refer to the paper for further details on the algorithm and the operators used.

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SC
CR
SL
Users
Optimal
3-regular
 
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CR
SL
SC
[Wang 2008]
Optimal
3-mixed
 
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Figure 9: An illustration of the dynamic programming table used to optimize the search for the best mixed path using two operators only - seam carving (SC) and scaling (SL). The colors in table (b) indicate the BDW distance of the best image in each step. The retargeted result is shown in (c) - this is the best result using a mixed path (i.e. the algorithm automatically determines the order of operators and how much each should contribute). The optimal operator sequence found is <-30SL,-30SC,-10SL,-20SC,-10SL,-10SC,-10SL,-20SC,-10SL>. For comparison, we show the results of using two regular paths (d) <-70SL,-80SC> and (e) <-80SC,-70SL>, and the optimal regular path (f) <-90SC,-60SL>. (g) uses scaling and (h) seam carving.

(b)
(c)
(d)
(e)
(f)
(g)
(h)
 
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Figure 13: We find the optimal regular path by finding the minimal BDW score (the red dot in (b)) for a combination of two operators (seam carving and scaling in this case) to retarget an image. Compare the resulting image (c) to using just seam carving (d) or just scaling (e).

(b)
(c)
(d)
(e)
 
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