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Tone mapping appears to introduce noise in HDR Merge


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Noticed that I was getting very noisy results with HDR Merge/Tone Map/Noise Reduction.  This was greatly improved by doing the HDR Merge with Noise Reduction and Tone Mapping turned off.  Noise Reduction then performed as expected.  However, the noise returned when I performed Tone Mapping.  I can post the photos if that helps (they are low-light and pretty noisy to begin with).

Thanks,

LevelB

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Did some more checking - it appears that something else may be happening.  HDR Merge/Tone Map works as expected - unless Noise Reduction is selected.  The default 40% noise reduction does not seem to work properly, and trying to then use the live denoise filter gives poor results.

Maybe this is an edge condition - these are pretty noisy pics, shot as I was checking out a new filter.

 

Hoping you have a great holiday season!

Street_5_-_1_-_5.ARW

Street_5_-_1_-_1.ARW

Street_5_-_1_-_2.ARW

Street_5_-_1_-_3.ARW

Street_5_-_1_-_4.ARW

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