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M
Martin Dubovsky
Known Participant
October 26, 2013

P: Noise reduction not working if image is cropped and export size small

  • October 26, 2013
  • 25 replies
  • 1292 views

Hello, some problems with NR not applied if image size < 1/3 of original were apparently solved in 5.2, but in some cases NR is still not applied. Please have a look at attached images, they are both exported with exactly same settings, the only difference is, that there is a crop applied on cropped.jpg version. Please notice the difference in overall noise. Please solve this problem as soon as possible, this has a big impact on image quality if higher ISO is used.
Please contact me, if original NEF or XMP is needed. I can reproduce the problem. It seems, that it appears only if some specific crops are used.
Thank you.
cropped.jpg:


not_cropped.jpg:

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    25 replies

    Show previous replies
    M
    Martin DubovskyAuthor
    Known Participant
    November 9, 2013
    Hi, I have just downloaded and installed 5.3 RC, and I can see, that correction for this problem was not included. Jeffrey, do you think, that there is some chance, that it will be in the final 5.3? Thank you.
    J
    J453
    Legend
    November 5, 2013
    Thanks Martin. The files helped us repro. Engineering is looking into this.
    J
    J453
    Legend
    November 2, 2013
    Thanks. We'll try that out and let you know if we need any more information.
    M
    Martin DubovskyAuthor
    Known Participant
    November 1, 2013
    Hi, please find sample catalog together with source nef and exported files here: http://dubovsky.changenet.sk/lr_nr_ex...
    The catalog contains 1 source photo with 2 virtual copies. I tried to isolate parameter which causes the problem - it seems, that if there are more extreme sharpening settings and there is some level of crop, exported image is lighter and contains a lot of noise. 3 copies of the same source image are exported with same settings (only sharpening, NR, and crop applied - all other modules are disabled) except of crop. Please note, that if there is only slight crop - export is correct (see exported jpegs or try export by your own).
    Thank you.
    MD.
    J
    J453
    Legend
    October 31, 2013
    Hi Martin,

    would it be possible to share the original files (on dropbox or another sharing service) and document the export settings you're using so we can try and reproduce this issue in house?

    Thanks!
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