Picture noise after export

[gramoerpsel]

Hello!

I am using Lightroom to edit my RAW files and export them.

On some files I have the problem that the image in Lightroom looks good, but after I exported it, the noise is extreme high.

At first I thought that it is a problem of the JPEG compression. Then I expoerted the same picture as PNG, but the noise even get worse.

I use the Adobe RGB color space at export and no sharpening at all.

Does anybody can tell me why?

The left side shows the picture as it appears in lightroom(its a screenshot), the right side is the exported PNG from lightroom

[Just Shoot Me]

As far as I know PNG compresses files even more than JPG. Export as a TIFF and look.

[gramoerpsel]

Hello JustShootMe,

unfortunately I can not use TIFF for my further use of the photos.

But I tried anybut and the TIFF Picture hat the same problem (a little less noise than in PNG or JPEG, but still not useable for printing or using it on websites)

[Todd Shaner]

This is almost always due to insufficient Noise Reduction and/or excessive Sharpening settings. Tell us the camera model and ISO setting for this image and a screenshot of the 'Detail' panel settings you applied. Also what version of LR are you using?

[Per Berntsen]

When evaluating sharpness and noise, (and when applying sharpening and noise reduction) you have to view the image at 1:1 (100%).  At this view, one image pixel is represented by one screen pixel, and this the only view/magnification that gives you a true representation of the image. Any other magnification will be inaccurate and misleading because the image has been scaled.

Also, different applications use different algorithms for scaling, so for instance, a 43% view in one application may look very different from the same view in another application.

So do you still see a difference when viewing both images at 1:1?

Please provide a screenshot from Lightroom as requested by Todd Shaner​. I suggest that you show us the entire Lightroom window with the image in Develop at 1:1, with the Detail panel visible.

Then I expoerted the same picture as PNG, but the noise even get worse.

Lightroom cannot export PNG. Do you mean DNG?