hello
hi, anyone using the leaf gain adjuster ?
I find that if I do ilumination correction as well, it adds alot of noise
to the image. Are you guy getting the same result ?
cheers
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there are two ways how noise can come in the image: pushing up the level of the vignetted corners of the image will increase the noise level, simply because they are underexposed as the result of the lens caused vignetting.
so applying a center filter will avoid his better than software levelling.
the seond reason may be the following:
i always wondered about how the gain adjuster can adjust the vignetting without adding at the same time the noise .... the way how to avoid this should be to soften or to denoise the white reference file, but the gain adjuster has to remove also at the same stage of processing the centerfold issue, which is visible in form of a defined line, so softening is not possible, otherwse the cf line would appear again.
its logic that the noise of the white refernce shot is added to the image. noise level should be more or less the double than without the adjuster.as longer the white shot is, as more noise should be added.
brumbaer tools has had the same problem till it was introduced its "denoise" function one year ago. with the B-tools this is possible because the tools do not have to remove the cf at the same stage, the cf is removed by a sw code meanwhile transferring the images.
supose phaseone goes here a similar way with its LCC method. they dont have to remove any centerfold, so they can soften their LCC shot, which does not introduce new noise to the image.