Jump to content
LevelB

Tone mapping appears to introduce noise in HDR Merge

Recommended Posts

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

Share this post


Link to post
Share on other sites

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

Share this post


Link to post
Share on other sites

If you load those images with noise reduction and load them without noise reduction, you can definitely see a big difference. However they are pretty noisy to begin with.

188485315_Screenshot2019-01-0208_36_24.thumb.png.54ce481e053fa04d53a7227e7052ec25.png

Left is without noise reduction. Right is with noise reduction. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×

Important Information

These are the Terms of Use you will be asked to agree to if you join the forum. | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.