MichaelVinther Posted April 6, 2012 Share Posted April 6, 2012 The Laplacian pyramid can be used to improve the overall illumination of photos, typically useful when part of the scene is in shadow. It can also smooth or enhance details in a photo without smoothing edges or introduce halos. Similar filters are used for tonemapping HDR pictures. Unfortunately the processing can take long time on big photos, so have patience... The filter was inspired by the paper "Local Laplacian Filters: Edge-aware Image Processing with a Laplacian Pyramid" by Sylvain Paris, Samuel W. Hasinoff and Jan Kautz. (http://people.csail..../2011/siggraph/) Example on detail enhancement (photo from Toul Sleng prison, Cambodia, © Michael Vinther 2012): Parameters used for example: Download: https://www.fosshub.com/Image-Analyzer-old.html?dwl=LaplacianPyramidFilterPDN1.1.2.zip NOTE: If you have trouble with the above link, you can download it from here: https://www.dropbox.com/scl/fo/ybrslwbxmtpf4mh446k4j/h?dl=0&rlkey=hma69px4yhpa31fawc88kyper Unzip the file in the Paint.NET\Effects folder or Documents\paint.net App Files\Effects if PDN was installed from the Windows Store. You can access the feature from the Effects | Photo menu. If you like this, please consider donating to the author at http://meesoft.logicnet.dk/Analyzer/support.htm 1 8 Quote Michael Vinther Link to comment Share on other sites More sharing options...
MichaelVinther Posted April 6, 2012 Author Share Posted April 6, 2012 (edited) By the way, if anyone has an idea for a better icon for the plugin you are welcome to send me a new picture - the current one was taken from myIncrease Local Contrast plugin. Edited April 6, 2012 by MichaelVinther Quote Michael Vinther Link to comment Share on other sites More sharing options...
yellowman Posted April 11, 2012 Share Posted April 11, 2012 Awesome, I just have one small problem: when I slide the "Detail handling" all the way to the left (zero), PDN crashes on me when I click OK or attempt to play with the other sliders. BTW, I love the effect of zero "Detail handling" Windows 7, .NET Framework 4, SP1 Quote My GalleryMy YouTube Channel "PDN Tutorials" Link to comment Share on other sites More sharing options...
Rick Brewster Posted April 11, 2012 Share Posted April 11, 2012 Paint.NET already requires .NET 3.5 SP1 so I'm not really sure why you called that out in your description Quote The Paint.NET Blog: https://blog.getpaint.net/ Donations are always appreciated! https://www.getpaint.net/donate.html Link to comment Share on other sites More sharing options...
MichaelVinther Posted April 11, 2012 Author Share Posted April 11, 2012 when I slide the "Detail handling" all the way to the left (zero), PDN crashes on me when I click OK Should be fixed now. Paint.NET already requires .NET 3.5 SP1 so I'm not really sure why you called that out in your description Ok, didn't know that. Actually I just copied the text from my Increase local Contrast plugin which was released before Paint.NET required that version. Quote Michael Vinther Link to comment Share on other sites More sharing options...
pdnnoob Posted April 11, 2012 Share Posted April 11, 2012 (edited) This...looks incredible. <downloads> It seems to make photos look like drawings somehow... I'll see what I can do about an icon...the one it has looks ok already, though Edited April 11, 2012 by pdnnoob Quote No, Paint.NET is not spyware...but, installing it is an IQ test. ~BoltBait Blend modes are like the filling in your sandwich. It's the filling that can change your experience of the sandwich. ~Ego Eram Reputo Link to comment Share on other sites More sharing options...
yellowman Posted April 14, 2012 Share Posted April 14, 2012 Should be fixed now. Yes, thank you very much, I tried it on this photo: And got this: Quote My GalleryMy YouTube Channel "PDN Tutorials" Link to comment Share on other sites More sharing options...
ajfudge Posted June 10, 2013 Share Posted June 10, 2013 Wow! This is impressive! Instant HDR! Quote Link to comment Share on other sites More sharing options...
Drazick Posted April 13, 2014 Share Posted April 13, 2014 Hi, Looks great. could you shed some light on the implementation? In ACR they use it for Shadow / Highlight and Clarity, any idea how? Quote Link to comment Share on other sites More sharing options...
david.atwell Posted April 14, 2014 Share Posted April 14, 2014 The person who posted this hasn't been online in over a year. I doubt you'll receive an answer. Quote The Doctor: There was a goblin, or a trickster, or a warrior... A nameless, terrible thing, soaked in the blood of a billion galaxies. The most feared being in all the cosmos. And nothing could stop it, or hold it, or reason with it. One day it would just drop out of the sky and tear down your world.Amy: But how did it end up in there?The Doctor: You know fairy tales. A good wizard tricked it.River Song: I hate good wizards in fairy tales; they always turn out to be him. Link to comment Share on other sites More sharing options...
MichaelVinther Posted January 18, 2015 Author Share Posted January 18, 2015 could you shed some light on the implementation? Basically it's all in the paper referenced in the first post.. The algorithm is fairly complex to explain so that would be the best reference. Quote Michael Vinther Link to comment Share on other sites More sharing options...
racerx Posted February 15, 2015 Share Posted February 15, 2015 This filter works well for retrieving lost detail in shadows, however it is extremely slow with large images.... Quote Link to comment Share on other sites More sharing options...
MichaelVinther Posted February 18, 2015 Author Share Posted February 18, 2015 (edited) I have just updated the download link with a new version that is much faster. .. and another tone mapping example (photo from The Cisterns below Copenhagen, © Michael Vinther 2014): Edited February 18, 2015 by MichaelVinther Quote Michael Vinther Link to comment Share on other sites More sharing options...
racerx Posted February 20, 2015 Share Posted February 20, 2015 I really like the adjustment range on this filter. This one is a keeper.... Quote Link to comment Share on other sites More sharing options...
Seerose Posted February 20, 2015 Share Posted February 20, 2015 This is very interesting plugin. Fairly clear variation. Thank you so much. Quote Live as if you were to die tomorrow. Learn as if you were to live forever. Gandhi Link to comment Share on other sites More sharing options...
MJW Posted March 8, 2015 Share Posted March 8, 2015 This is quite an intriguing plugin. When combined with effects like the surface blur and soften portrait, it can produce a nice approximation of an air-brush illustration. This can be enhanced by copying the image to an upper layer and using the pencil sketch effect with multiply blending mode. Quote Link to comment Share on other sites More sharing options...
Maximilian Posted April 3, 2015 Share Posted April 3, 2015 Would it be possible to compile a version compatible with PdN 3.5.11? Quote Link to comment Share on other sites More sharing options...
MichaelVinther Posted April 4, 2015 Author Share Posted April 4, 2015 (edited) I have placed the previous version of the plugin which should be compatible with older versions of PDN here: LaplacianPyramidFilter1.0.0.1.zip Note that it is somewhat slower than the latest version. Edited April 4, 2015 by MichaelVinther Quote Michael Vinther Link to comment Share on other sites More sharing options...
Maximilian Posted April 4, 2015 Share Posted April 4, 2015 Thank you very much, Michael! I'll give it a try! Quote Link to comment Share on other sites More sharing options...
birinci Posted October 8, 2015 Share Posted October 8, 2015 Hi Michael... Thanks a lot for the filter. Just wanted to give you a heads-up for this paper. They claim they achieved 50x speed improvement for Local Laplacian Filters Quote Link to comment Share on other sites More sharing options...
MichaelVinther Posted January 29, 2016 Author Share Posted January 29, 2016 (edited) Hi Michael... Thanks a lot for the filter. Just wanted to give you a heads-up for this paper. They claim they achieved 50x speed improvement for Local Laplacian Filters Thanks for the hint, I will get this paper. Just one more example (photo from Mostar, Bosnia-Herzegovina, © Michael Vinther 2015): Edited February 6, 2016 by MichaelVinther 4 Quote Michael Vinther Link to comment Share on other sites More sharing options...
Seerose Posted January 30, 2016 Share Posted January 30, 2016 MichaelVinther! A very nice result. Thank you. Welcome to the forum. Quote Live as if you were to die tomorrow. Learn as if you were to live forever. Gandhi Link to comment Share on other sites More sharing options...
MichaelVinther Posted February 8, 2016 Author Share Posted February 8, 2016 (edited) Hi Michael... Thanks a lot for the filter. Just wanted to give you a heads-up for this paper. They claim they achieved 50x speed improvement for Local Laplacian Filters I tried to implement the optimizations they describe in this paper, but unfortunately it didn't give much compared to my existing implementation. For some parameter values (with Detail handling=1 (alpha in the paper)) it is faster (perhaps 2x) but for other values it actually takes longer to achieve the same quality. I've uploaded the plugin with a new version that uses the new algorithm when it makes sense. Edited February 8, 2016 by MichaelVinther Quote Michael Vinther Link to comment Share on other sites More sharing options...
barbieq25 Posted February 8, 2016 Share Posted February 8, 2016 Thank you for your hard work I love this plugin & use it quite often. Quote Knowledge is no burden to carry. April Jones, 2012 Gallery My DA Gallery Link to comment Share on other sites More sharing options...
Nai Posted February 9, 2016 Share Posted February 9, 2016 This is a great plugin ! Before this, I used several layers with different blending modes ( and adjustments to it ) to create the desired effect I need. And 'soft light' mode from Blend Mode process is needed in the process. I think this plugin saves time. Quote Link to comment Share on other sites More sharing options...
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