Converting images

Hi Can anybody help me. I have taken images in raw mode using adobeRGB

color space. Once I have processed the raw images I would like to

save them as Jpeg and convert the color space to sRGB so that my local

photo lab can print them out. Is that possible and if so how. I have

got photoshop CS2

Hi David,

 

Yes, it's possible. Just use the "Convert to Profile" command (Image menu, I think).

 

Better still, ask your local lab to use the embedded profile (AdobeRGB) for colour conversion.

 

Tim

It's in the "Edit" menu....

I think it's: Image --> Mode --> Convert to Profile --> sRGB

You can send them the adobeRGB too if you want, the machine will convert it and you should

not see a difference.

Regarding:

 

"I have taken images in raw mode using adobeRGB color space"

 

isn't color space irrelevant in raw mode?

You can set the RAW converter to output sRGB color space when it converts the file.

You can also use Bridge. Select all the images you want to convert in Bridge then go to TOOLS menu up top -> PHOTOSHOP -> IMAGE PROCESSOR and select where and how you want to output them. You can specify maximum dimensions for Jpeg, quality setting and even colourspace as sRGB. You can then leave this processing your files in the background and work on something else in Photoshop, or not even have Photoshop open if you don't want to.

It's best to edit and archive your results in Adobe RGB. For printing, convert a copy to sRGB (in CS2, use Edit/Convert to profile) and save it as a JPEG.

 

Adobe RGB is a good compromise between gamut and color resolution. The gamut of sRGB is just too limited for general use. Wider gamut color space than Adobe RGB can lead to posterization, since each bit represents a bigger change. This is not a problem with 16 bit files, but may affect the results if you down size to 8-bit.

1.) As long as you don't save the processed file with the same extension as the raw file, in

Bridge, you can open , do your basic image processing (color exposure etc.) in ACR 3.x

and save out a version of the image directly as an 8 bit sRGB PSD file. Save these to a

different folder than the ones your original raw images are in. (the raw images you'll want

to archive.) If you have a few or a lot of similar images that need the same amount of

tweaking, in ACR 3.x you can bring in all of the similar raw files choose ALL (upper left

hand corner) and synchronize and as you work on the first image the tweaks are applied

to all of the images. You can then choose to open the files, save and open the files, or

choose "done" to save the changes in the instruction set for each image.

 

After going through the entire set of images while still in Bridge, now choose Image

Processor ( Tools > Photoshop >Image Processor and choose the jpeg format and the size

in pixels you want to save as, and create a new folder where you'll save the converted

versions.

 

2.) if you are opening up the images one at a a time in PSCS2 , you change the colorspace

by

going to Edit > Convert to Profile, and choosing the appropriate Profile there.