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One interesting thing that may help the final output quality is preserving the detail layer of the original image, and then applying that to the output image. H
by jjcm 10y ago
One interesting thing that may help the final output quality is preserving the detail layer of the original image, and then applying that to the output image. Here's my quick attempt at it: http://dev.jjcm.org/tonetransfer/ http://dev.jjcm.org/tonetransfer/
I basically just used a technique called frequency separation - it's extremely quick with the most computational part being a gaussian blur, and it allows you to separate detail from tone into two separate layers. From there I just took the detail layer of the original image and applied it to the tone layer of the output image.
- omegote 10y agoThat's pretty good, a nice improvement. Frequency separation is one of the most common retouching techniques, but works wonders in this case as well.
- epigramx 10y agoTheir implementation appears to lose a lot of detail in many examples. This is especially true on human faces or pictures that include human faces. Can you reproduce an improvement there?
- jjcm 10y agoI didn't see any examples of human faces, can you link me to one? Happy to try it out and see the results.
- woliveirajr 10y agoI really like decomposing an image using wavelets (more than 2 layers, in general I use 7). You can make some good corrections on skin imperfections in the middle layers, keepin it natural (high frequencies untouched). I'm thinking how it would be if I could you your method (or the OP) on the lower layers, which mainly control colors...