Can Photoshop help with colour correction? at DVinfo.net

David Hurdon · August 25th, 2003, 05:33 AM

I've shot with two cameras in a bright daylight setting on a river cruise boat (under a glass/plexi canopy). Tape from the backup camera (Sony D8) is darker than from the VX2000 and colour in the late cruise is more saturated than the noon cruise. Are there tools in Photoshop that can tell me, by looking at frame exports, how to use Premiere to smooth out some of the differences? I'm ok with light levels but colour work is outside my real experience.

David Hurdon

Edward Troxel · August 25th, 2003, 06:57 AM

I guess it could IF you want to manually adjust every frame. Why not use the color correction tools in your NLE?

David Hurdon · August 25th, 2003, 07:16 AM

Sorry if I wasn't clear, Edward. I asked how to use Photoshop to analyse differences in frame captures and act on the info in Premiere. Not how to correct frame by frame. I'm a little old for that kind of time investment.

David Hurdon

Jeff Donald · August 25th, 2003, 07:35 AM

The problem will PS is that it will use colors outside the range (gamma) of NTSC video. In the filters there is an NTSC color safe filter, but it's not the best conversion. You're better off using the software waveform monitor/vectorscope in your NLE.

David Hurdon · August 25th, 2003, 07:51 AM

Thanks, Jeff. I do have those tools in the Canopus DV Tools set but like Premiere 6 there is no way I know to keep a reference clip/frame on the screen while "correcting". If I have to rely on my memory to correct I'm in trouble. I've seen demos of FCP in which a "correct" frame is next to the "to be corrected" frame for visual reference of progress. How can you accomplish that in Premiere and if you can't, how the heck do you correct other than by trial and error?

David Hurdon

David Hurdon · August 25th, 2003, 08:37 AM

Thanks, Jeff. I do have those tools in the Canopus DV Tools set but like Premiere 6 there is no way I know to keep a reference clip/frame on the screen while "correcting". If I have to rely on my memory to correct I'm in trouble. I've seen demos of FCP in which a "correct" frame is next to the "to be corrected" frame for visual reference of progress. How can you accomplish that in Premiere and if you can't, how the heck do you correct other than by trial and error?

David Hurdon

Edward Troxel · August 25th, 2003, 09:46 AM

I believe that was added in Premiere Pro as well???? I know Vegas 4 can do this too.

Jeff Donald · August 25th, 2003, 09:46 AM

I'm a Mac guy, so I can't be much help here, except to say that PS is not the best tool for the job. Maybe rephrase the question so the Premiere users can post on your questions.

Mike Rehmus · August 25th, 2003, 11:38 AM

If you have one of the real time Canopus cards, then you could import the footage into the Canopus editing software, fix the problems in there and then export the footage back to Premiere.

The latest color correction tools in the RT software are fairly good. Not as good as Edius but OK.

Try the gamma curve control to get the brightness levels similar. If you correct the color saturation (an easy task in the Canopus software) it will no longer look like afternoon but the shadows may look all wrong.

There is a good book on color correction that you can get. I find it to be of great help. Color Correction for Digital Video" by Steve Hullfish and Jaime Fowler is the name. I'd like to thank Ken Tanaka for mentioning the book.

David Hurdon · August 25th, 2003, 11:59 AM

Thank you Mike. I'll get the book.

David Hurdon

August 25th, 2003, 05:33 AM	#1
David Hurdon Major Player Join Date: Nov 2002 Location: Toronto, Canada Posts: 484	Can Photoshop help with colour correction? I've shot with two cameras in a bright daylight setting on a river cruise boat (under a glass/plexi canopy). Tape from the backup camera (Sony D8) is darker than from the VX2000 and colour in the late cruise is more saturated than the noon cruise. Are there tools in Photoshop that can tell me, by looking at frame exports, how to use Premiere to smooth out some of the differences? I'm ok with light levels but colour work is outside my real experience. David Hurdon __________________ Site:http://www.faceliftmarketing.ca Blog:http://www.websitevideo.blogspot.com

August 25th, 2003, 07:16 AM	#3
David Hurdon Major Player Join Date: Nov 2002 Location: Toronto, Canada Posts: 484	Sorry if I wasn't clear, Edward. I asked how to use Photoshop to analyse differences in frame captures and act on the info in Premiere. Not how to correct frame by frame. I'm a little old for that kind of time investment. David Hurdon __________________ Site:http://www.faceliftmarketing.ca Blog:http://www.websitevideo.blogspot.com

August 25th, 2003, 07:35 AM	#4
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	The problem will PS is that it will use colors outside the range (gamma) of NTSC video. In the filters there is an NTSC color safe filter, but it's not the best conversion. You're better off using the software waveform monitor/vectorscope in your NLE. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

August 25th, 2003, 07:51 AM	#5
David Hurdon Major Player Join Date: Nov 2002 Location: Toronto, Canada Posts: 484	Thanks, Jeff. I do have those tools in the Canopus DV Tools set but like Premiere 6 there is no way I know to keep a reference clip/frame on the screen while "correcting". If I have to rely on my memory to correct I'm in trouble. I've seen demos of FCP in which a "correct" frame is next to the "to be corrected" frame for visual reference of progress. How can you accomplish that in Premiere and if you can't, how the heck do you correct other than by trial and error? David Hurdon __________________ Site:http://www.faceliftmarketing.ca Blog:http://www.websitevideo.blogspot.com

August 25th, 2003, 08:37 AM	#6
David Hurdon Major Player Join Date: Nov 2002 Location: Toronto, Canada Posts: 484	Thanks, Jeff. I do have those tools in the Canopus DV Tools set but like Premiere 6 there is no way I know to keep a reference clip/frame on the screen while "correcting". If I have to rely on my memory to correct I'm in trouble. I've seen demos of FCP in which a "correct" frame is next to the "to be corrected" frame for visual reference of progress. How can you accomplish that in Premiere and if you can't, how the heck do you correct other than by trial and error? David Hurdon __________________ Site:http://www.faceliftmarketing.ca Blog:http://www.websitevideo.blogspot.com

August 25th, 2003, 06:57 AM	#2
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	I guess it could IF you want to manually adjust every frame. Why not use the color correction tools in your NLE?

August 25th, 2003, 09:46 AM	#7
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	I believe that was added in Premiere Pro as well???? I know Vegas 4 can do this too.

August 25th, 2003, 11:38 AM	#9
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	If you have one of the real time Canopus cards, then you could import the footage into the Canopus editing software, fix the problems in there and then export the footage back to Premiere. The latest color correction tools in the RT software are fairly good. Not as good as Edius but OK. Try the gamma curve control to get the brightness levels similar. If you correct the color saturation (an easy task in the Canopus software) it will no longer look like afternoon but the shadows may look all wrong. There is a good book on color correction that you can get. I find it to be of great help. Color Correction for Digital Video" by Steve Hullfish and Jaime Fowler is the name. I'd like to thank Ken Tanaka for mentioning the book. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

August 25th, 2003, 11:59 AM	#10
David Hurdon Major Player Join Date: Nov 2002 Location: Toronto, Canada Posts: 484	Thank you Mike. I'll get the book. David Hurdon __________________ Site:http://www.faceliftmarketing.ca Blog:http://www.websitevideo.blogspot.com