Re: PhotoShop Spot Channels
Re: PhotoShop Spot Channels
- Subject: Re: PhotoShop Spot Channels
- From: Rick Gordon <email@hidden>
- Date: Sat, 28 Jun 2008 11:25:04 -0700
Checking for component channels is doing the same thing. In CMYK mode, the component channels are C, M, Y, and K; in RGB mode, they are R, G, and B; etc.
Rick Gordon
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On 6/28/08 at 6:02 PM +0100, Simon Topliss wrote in a message entitled
"Re: PhotoShop Spot Channels":
>Thanks, Rick and Martin.
>
>I've just been using the following to get the name of the channels:
>
>tell application "Adobe Photoshop CS3"
> try
> set colourChannelList to name of channels of current document whose name is not in {"Cyan", "Magenta", "Yellow", "Black"}
> on error
> set colourChannelList to {"[None]"}
> end try
>end tell
>
>Not too sure what the difference between regular channels and component channels are?
>
>To elaborate a bit further, I open the PSD file, read the channels and store them in the xmp meta data of the PSD file along with the date modified of the time that the result was written.
>
>When I need to verify the PSD again, if the date modified of the PSD file is newer than the date modified I stored in the xmp header, I open the PSD again and re-index the colour channels again. This new data is then re-added to the xmp meta data.
>
>All is working well. I would just prefer not to open the PSD file if it has been modified to re-check what channels may have been added or removed. This can cause problems if someone else is currently working on the image.
>
>SIPS and ImageMagick won't read the channel names. I was hoping that there was something else that didn't require PS to open the image to get what I wanted.
>
>Simon
--
___________________________________________________
RICK GORDON
EMERALD VALLEY GRAPHICS AND CONSULTING
___________________________________________________
WWW: http://www.shelterpub.com
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