tag:blogger.com,1999:blog-13372801.post908425400363267894..comments2024-01-26T00:12:27.541-08:00Comments on GoPro/CineForm Insider: 10-bit log vs 12-bit linearDavidhttp://www.blogger.com/profile/11820803180730920007noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-13372801.post-58559215229941943312013-11-26T07:45:11.521-08:002013-11-26T07:45:11.521-08:00If you have a old Neo HD/4K/3D install or a new Go...If you have a old Neo HD/4K/3D install or a new GoPro Studio Premium (even 15-day trial.) You can convert CineForm RAW to DPX using a shell tool that is way faster than After Effects. Use CF2DPX.exe.Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-52372684770552066832013-11-26T04:33:34.520-08:002013-11-26T04:33:34.520-08:00I have to convert Cineform Raw QT files from Sl-2k...I have to convert Cineform Raw QT files from Sl-2k to DPX for color grading (The post house demands DPX).<br />Inside After effects render settings, what should I choose to keep as much as information?Bharathyhttps://www.blogger.com/profile/13468856303188631375noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-23705792650220093752012-11-11T00:59:45.406-08:002012-11-11T00:59:45.406-08:00David, I've heard those figures (10-bit log eq...David, I've heard those figures (10-bit log equivocates to 14-bit linear, etc.) tossed around quite frequently. However, I've never actually seen the math. Would you mind spelling it out in layman's terms?Anonymoushttps://www.blogger.com/profile/06247493026836256470noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-32959473011276948542012-04-01T09:57:03.109-07:002012-04-01T09:57:03.109-07:00Source claiming to be 16-bit linear, and more like...Source claiming to be 16-bit linear, and more likely 13-bit with 3 bit of pure noise. Sensor dynamic range and SNR are not that good yet. This is a very old post, pretty much every one has more to 12-bit encoding (SR, ProRES, CineForm.) Log encoding into a 12-bit compressor with get you to around 16-bit linear coverage, 10-bit to around 14-bit. Cameras that use HDSDI are only generally still Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-39309046171373687942012-04-01T06:36:01.840-07:002012-04-01T06:36:01.840-07:00This comment has been removed by the author.Valentino's Technical Bloghttps://www.blogger.com/profile/04036078255306466044noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-80059711906992491992012-04-01T06:35:49.124-07:002012-04-01T06:35:49.124-07:00This blog was amazing! Well written and well said!...This blog was amazing! Well written and well said! That being said - with the new Epic being 16bit linear - is that more comparable with the 10bit LOG? Overall I meanValentino's Technical Bloghttps://www.blogger.com/profile/04036078255306466044noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-75240628419422886992012-04-01T06:34:51.621-07:002012-04-01T06:34:51.621-07:00This comment has been removed by the author.Valentino's Technical Bloghttps://www.blogger.com/profile/04036078255306466044noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-10076714246257469832009-09-25T01:35:12.312-07:002009-09-25T01:35:12.312-07:00Very informative post David. I re-created your exp...Very informative post David. I re-created your experiment to see the things for myself and the results were very interesting. I used the Kodak "Marcie" dlad image and the detail in her hair was very useful in seeing the difference between in compressing log or linear space: http://hv20.com/showthread.php?t=2889lordtangenthttps://www.blogger.com/profile/12144468868796249324noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-88861345678707723132007-10-09T16:38:00.000-07:002007-10-09T16:38:00.000-07:00What would we do… Very useful article!Thank you fo...What would we do… Very useful article!<BR/><BR/>Thank you for all the details.Pavel Orlovhttps://www.blogger.com/profile/13135591570154678275noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-10864541723496675662007-09-23T01:31:00.000-07:002007-09-23T01:31:00.000-07:00I gotcha now. It was your 6Megapixel camera image...I gotcha now. It was your 6Megapixel camera images that were throwing me off, I thought you were comparing 2k to 4k there.<BR/><BR/>Really good info though, both here and on the Red site. Thanks for all of the detail and explanation.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-13372801.post-84812318333034710202007-09-21T21:36:00.000-07:002007-09-21T21:36:00.000-07:00Mike,I think the numbers are correct. 16-bit TIFF...Mike,<BR/><BR/>I think the numbers are correct. 16-bit TIFF is 48-bits per pixel (RGB 4:4:4) or 6 bytes per pixel. 4k by 2k = 4096 x 2048 x 6 x 24fps = 1207959552 = 1.152 GBytes/s.Davidhttps://www.blogger.com/profile/11820803180730920007noreply@blogger.comtag:blogger.com,1999:blog-13372801.post-15980015029941086162007-09-21T20:39:00.000-07:002007-09-21T20:39:00.000-07:00Great info in that post. Very impressive. I want...Great info in that post. Very impressive. I wanted to point out that the data rate numbers in the first paragraph in the "Case for Linear" section don't seem correct. You may want to double check that, at the very least it is a bit ambiguous and confusing, in the way they are stated.Anonymousnoreply@blogger.com