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The analytic solution:
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Monte Carlo, 16 random samples:
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Monte Carlo, 16 stratified samples:
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Monte Carlo, 100 random samples:
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Monte Carlo, 100 stratified samples:
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Monte Carlo, 100 random samples with bspline filter:
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Density estimation, 100 random samples per pixel on average:
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Density estimation, 100 stratified samples per pixel on average:
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Metropolis with 1 iteration
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Metropolis with 2 iterations
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Metropolis with 4 iterations
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Metropolis with 8 iterations
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Metropolis with 16 iterations
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Metropolis with 32 iterations
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