tag:blogger.com,1999:blog-13372801.post4230579653638008125..comments2024-01-26T00:12:27.541-08:00Comments on GoPro/CineForm Insider: Protune 2.0Davidhttp://www.blogger.com/profile/11820803180730920007noreply@blogger.comBlogger52125tag:blogger.com,1999:blog-13372801.post-36913712096428764102015-04-15T04:37:42.322-07:002015-04-15T04:37:42.322-07:00Hi, David.
Can you please specify the primary c...Hi, David. <br /><br />Can you please specify the primary chromaticities for CAMRAW? Is it the same for each of the different GoPro cameras? I am working on an ACES IDT for Protune.<br /><br />Thanks.balazerhttps://www.blogger.com/profile/07679939273821807432noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-3990694686386104652015-03-31T16:51:47.918-07:002015-03-31T16:51:47.918-07:00Both are viable workflows. Youtube also supports ...Both are viable workflows. Youtube also supports 60p now, so it all depends on the look you want.Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-2875502877387648562015-03-31T11:33:46.465-07:002015-03-31T11:33:46.465-07:00Great resource page. I have fine tuned my GoPro He...Great resource page. I have fine tuned my GoPro Hero 3+ Black settings to use Protune (CAM RAW) using 1080 60fps. My concern now is exporting the footage... Do I export it the same as the capture or 30 fps (HD 1080p or Custom). I have seen people film in 60fps, slow it down 50% then export at 30fps. This is for Youtube... any suggestions? ThanksAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-13372801.post-35502410003714737692015-02-22T16:37:37.014-08:002015-02-22T16:37:37.014-08:00Regarding being able to control the shutter speed,...Regarding being able to control the shutter speed, I understand why its not completely doable, but having a limit to prevent the shutter speed being lower then a set value would be helpful possibly helpful in preventing rolling shutter right?<br />for example i would love to use 2.7 but hardly ever do because of rolling shutter, and its not like we can set the fps to a higher rate to prevent the thejohnnyoshowhttps://www.blogger.com/profile/01556236986328845310noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-12193069467679965362015-01-17T13:05:06.189-08:002015-01-17T13:05:06.189-08:00Now it is the mode for pros to tune their GoPro ca...Now it is the mode for pros to tune their GoPro cameras. ... <a href="http://likegopro.blogspot.com" rel="nofollow">likegopro.blogspot.com</a><br />Cameras Like Goprohttp://likegopro.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-13372801.post-78119376346472696602014-07-09T06:29:57.788-07:002014-07-09T06:29:57.788-07:00I made test video of time lapse sunset using 1440 ...I made test video of time lapse sunset using 1440 24p. Protune On, Flat, ISO Limit 1600, CAM_RAW. Can you recommend any tutorials/ resources for post using Studio Premium? <br />DanHhttps://www.blogger.com/profile/10512039370229085193noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-70034885190296764362014-07-08T13:44:57.171-07:002014-07-08T13:44:57.171-07:00GOPRO FILMMAKERS: Stage 32 and i4software partner ...GOPRO FILMMAKERS: Stage 32 and i4software partner for worldwide launch of Prizmia for GoPro, a real time editing app for GoPro that greatly enhances the filmmaking experience. 50 Stage 32 filmmakers will receive advance release of the app. Click here for more info: https://www.stage32.com/promotions/shannonnoreply@blogger.comtag:blogger.com,1999:blog-13372801.post-12046762192865225682014-07-08T07:52:52.713-07:002014-07-08T07:52:52.713-07:00Thanks. What settings and workflow do you recommen...Thanks. What settings and workflow do you recommend for night to daytime sunrise video using video and Srudio Premium ( I might have posted this reply accidentally in another blog entry )DanHhttps://www.blogger.com/profile/10512039370229085193noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-32300910337440584442014-07-07T23:20:26.394-07:002014-07-07T23:20:26.394-07:00"Can I damage sensor if I use your video meth..."Can I damage sensor if I use your video method for time lapse of rising sun?" No. Video or stills, there is no iris or mechanical shutter, so the same about on light hits the sensor, even if the camera is off. Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-48018751794748716152014-07-07T13:17:38.237-07:002014-07-07T13:17:38.237-07:00Can I damage sensor if I use your video method for...Can I damage sensor if I use your video method for time lapse of rising sun?DanHhttps://www.blogger.com/profile/10512039370229085193noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-84823154572920887992014-07-03T20:28:24.742-07:002014-07-03T20:28:24.742-07:00No idea, but I got to get me some of those filters...No idea, but I got to get me some of those filters. ;)Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-15185300970637393642014-07-03T20:22:16.772-07:002014-07-03T20:22:16.772-07:00OK, now we have filters.
http://www.dpreview.com/...OK, now we have filters.<br /><br />http://www.dpreview.com/articles/3507005972/lee-introduces-filter-system-for-gopro-cameras<br /><br />*Now* surely GoPro will let us manually set shutter speed and ISO, right?<br /><br />Bruce AllenBruce Allenhttps://www.blogger.com/profile/03648669136359616218noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-40677013297846716802014-06-25T12:04:06.202-07:002014-06-25T12:04:06.202-07:00David,
thank you very much for this additional in...David,<br /><br />thank you very much for this additional information! Your sin contrast tonal curve in Rec 709/sRGB is what I was looking for since some time. Your explanation is proof that the tonal curve I found a long time ago in a Kdenlive forum is indeed "correct". In addition, your formula now allows me and others to reproduce this "Protune" tonal curve in any open TheDiveOhttps://www.blogger.com/profile/14481271389166834156noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-18960848391298338272014-06-23T15:58:38.518-07:002014-06-23T15:58:38.518-07:00You can do it this way:
input = (float)RGBinput /...You can do it this way:<br /><br />input = (float)RGBinput / 255.0;<br />linear = (pow(113.0, input) - 1.0)/112.0;<br />gamma22 = pow(linear, 0.45);<br />RGBoutput = gamma22 * 255.0;<br /><br />This will not give the contrast of a classic GoPro Hero look, but it is closer. <br /><br />For more contrast do the following:<br />input = (float)RGBinput / 255.0;<br />contrast = 0.5 * sinf(3.14159 * Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-72793255500028910492014-06-23T13:36:32.388-07:002014-06-23T13:36:32.388-07:00David,
thank you very much for taking the time t...David, <br /><br />thank you very much for taking the time to (hopefully) set me on the right track. Stu's ProLost blog article you linked to was also of great help.<br /><br />So I was basically phrasing my question wrong (more or less completely). Hoping that rephrasing this time yields the proper question: What I would like to know is how to translate from the 8bit Protune log encoding TheDiveOhttps://www.blogger.com/profile/14481271389166834156noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-25186171713986547832014-06-22T12:09:01.352-07:002014-06-22T12:09:01.352-07:00TheDiveO,
It is a pure log curve, applied in the ...TheDiveO,<br /><br />It is a pure log curve, applied in the R,G,B domain (sensor data, prior to white-balance and color matrix when using CAM_RAW.) See the original post for more on log curves <br />http://cineform.blogspot.com/2012/10/protune.html<br /><br />and even further back on Log vs Linear http://cineform.blogspot.com/2007/09/10-bit-log-vs-12-bit-linear.html<br />Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-10110963917481711292014-06-22T11:39:39.640-07:002014-06-22T11:39:39.640-07:00David,
sorry for pestering again. I don't und...David,<br /><br />sorry for pestering again. I don't understand the formula you've given. While I'm not clear whether input is the luma value or either an R, G, or B value this curve basically darkens the image. At least if pow(a, b) means a^b (or a**b for us FORTRAN die-hards). I would have expected an S-shaped curve that allocates more detail to the ends, that is, to the dark and TheDiveOhttps://www.blogger.com/profile/14481271389166834156noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-65895025152854668442014-06-22T10:53:50.567-07:002014-06-22T10:53:50.567-07:00Thanks David for your quick response!
For the H3 ...Thanks David for your quick response!<br /><br />For the H3 with Protune I managed to create a good emulation of the GoPro color profile that does a decent job ... at least for my needs. I also published it on my blog and YT channels so others can build upon my findings.<br /><br />Of course, as I'm doing post myself, I don't need GoPro's magic sauce and also don't emulate it ... TheDiveOhttps://www.blogger.com/profile/14481271389166834156noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-50113374923928940692014-06-22T10:23:51.462-07:002014-06-22T10:23:51.462-07:00TheDvieO,
Please try again with other sources as ...TheDvieO,<br /><br />Please try again with other sources as it has not changed. In GoPro Studio we do nothing different between H3 and H3+ for processing Protune Flat. <br /><br />To map Protune Flat back to linear light (not display gamma, which you need also) <br />linear = (pow(113.0, input) - 1.0)/112.0; // all values normalized 0 to 1.0<br /><br />Adding a display 2.2 gamma will not get youDavidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-23857961721933849802014-06-22T09:46:17.886-07:002014-06-22T09:46:17.886-07:00David, for Protune 1.0 there exists a known tonal ...David, for Protune 1.0 there exists a known tonal curve for working with Protune footage in post in video editors not supported by GoPro. It basically is the reverse of the compression curve (you call it a log curve) used for all three primary color channels. I've documented my knowledge and findings on my blog for other open source users who need to work with Protune footage.<br /><br />WithTheDiveOhttps://www.blogger.com/profile/14481271389166834156noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-71415844517072614692014-05-22T14:28:36.118-07:002014-05-22T14:28:36.118-07:00The Protune preset is Studio is just metadata, it ...The Protune preset is Studio is just metadata, it is non-destructive and only a starting point. It is only the application on an S-curve, not addition saturation. I typically reduce the contrast from the default before other enhancement. Remember Protune Flat is designed for color correction, so a default correction will not be good all situations.Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-6747491568056684902014-05-21T12:50:23.680-07:002014-05-21T12:50:23.680-07:00Hi David, is there a way to get the protune 2.0/Go...Hi David, is there a way to get the protune 2.0/Gopro color in post production? I find the protune preset in gopro studio usually oversaturated and bad while the new gopro color + protune on the hero+ gives the right compromise between protune's dynamic range and vivid colorMichelenoreply@blogger.comtag:blogger.com,1999:blog-13372801.post-27505493510490120782014-05-12T21:45:07.071-07:002014-05-12T21:45:07.071-07:00Seems like you can buy more GoPros now you have th...Seems like you can buy more GoPros now you have the hack you want. ;)Anonymoushttps://www.blogger.com/profile/00013887633974927699noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-61915383694495949422014-05-12T17:02:19.639-07:002014-05-12T17:02:19.639-07:00Dear David
There are plenty of more uses beyond c...Dear David<br /><br />There are plenty of more uses beyond camera arrays. For example, aerial drones, lower light situations, indoors, etc.<br /><br />There's a demand and we hope GoPro listens to it. I don't understand why GoPro insist on telling consumers what they want. It should be the other way around. I'm certainly not buying another GoPro until this gets fixed.<br /><br />Bruce Allenhttps://www.blogger.com/profile/03648669136359616218noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-67022397165758414522014-04-23T21:15:49.974-07:002014-04-23T21:15:49.974-07:00My post went out before I was finished. There is ...My post went out before I was finished. There is ecosystem to deal with. Technically all cameras start as fully manual, auto exposure is simply the algorithmic setting of manual exposure. Exposure can be set to nearly any combination of ISO and shutter. However in full daylight very few combinations will make sense, why I mention ND. If you had manual, other than for array projects, you Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.com