Problem with colours

I have a JPG fractal image containing vivid blues, purples and yellow. If I load this into Photoshop CS2 with the Adobe RGB (1998) profile and print it on my Canon Pixma iP5200, I get a pleasing result with bright colours that are similar to what appears on the screen.

But if I follow the proofing procedure described in Chapter 16 of the Adobe ‘Classroom in a book’ about Photoshop CS2, the colours in the image become muddy and unattractive and nothing I can do by way of adjusting hue, saturation etc does anything to bring back the original vivid colours or anything like them. If I print the image out, the colours are just as muddy as they appear on the screen.

Can anyone explain what is going on?

I have posted this question on the Adobe Forum about Photoshop and it has been suggested that I simply have to put up with the muddy result I am getting, with no proper blue. But every colour magazine on sale in newspaper shops, bookstalls etc, demonstrates that it is possible to print in bright colours that are a tolerably good imitation of the kinds of bright colours that one can see on a computer screen.

Since my own inkjet printer can produce a reasonable imitation of the original fractal image as it appears on my computer screen, I simply don’t accept that the muddy colours produced by Photoshop’s conversion of the image to CMYK, losing all the original blue colour, is the best possible rendering of the image.

How can I get a CMYK version of this image to print with the kinds of bright colours that are seen in millions of colour magazines all over the world?

With thanks,

"Gerry" wrote in message

I have a JPG fractal image containing vivid blues, purples and yellow. If I load this into Photoshop CS2 with the Adobe RGB (1998) profile and print it on my Canon Pixma iP5200, I get a pleasing result with bright colours that are similar to what appears on the screen.

But if I follow the proofing procedure described in Chapter 16 of the Adobe ‘Classroom in a book’ about Photoshop CS2, the colours in the image become muddy and unattractive and nothing I can do by way of adjusting hue, saturation etc does anything to bring back the original vivid colours or anything like them. If I print the image out, the colours are just as muddy as they appear on the screen.

Can anyone explain what is going on?

I have posted this question on the Adobe Forum about Photoshop and it has been suggested that I simply have to put up with the muddy result I am getting, with no proper blue. But every colour magazine on sale in newspaper shops, bookstalls etc, demonstrates that it is possible to print in bright colours that are a tolerably good imitation of the kinds of bright colours that one can see on a computer screen.
Since my own inkjet printer can produce a reasonable imitation of the original fractal image as it appears on my computer screen, I simply don’t accept that the muddy colours produced by Photoshop’s conversion of the image to CMYK, losing all the original blue colour, is the best possible rendering of the image.

How can I get a CMYK version of this image to print with the kinds of bright colours that are seen in millions of colour magazines all over the world?

With thanks,

Gerry,

I have followed this thread in the AF, did you do the test that Don suggested in his last post?

MH

"Mike Hyndman" wrote in message

"Gerry" wrote in message

I have a JPG fractal image containing vivid blues, purples and yellow. If I load this into Photoshop CS2 with the Adobe RGB (1998) profile and print it on my Canon Pixma iP5200, I get a pleasing result with bright colours that are similar to what appears on the screen.

But if I follow the proofing procedure described in Chapter 16 of the Adobe ‘Classroom in a book’ about Photoshop CS2, the colours in the image become muddy and unattractive and nothing I can do by way of adjusting hue, saturation etc does anything to bring back the original vivid colours or anything like them. If I print the image out, the colours are just as muddy as they appear on the screen.

Can anyone explain what is going on?

I have posted this question on the Adobe Forum about Photoshop and it has been suggested that I simply have to put up with the muddy result I am getting, with no proper blue. But every colour magazine on sale in newspaper shops, bookstalls etc, demonstrates that it is possible to print in bright colours that are a tolerably good imitation of the kinds of bright colours that one can see on a computer screen.
Since my own inkjet printer can produce a reasonable imitation of the original fractal image as it appears on my computer screen, I simply don’t accept that the muddy colours produced by Photoshop’s conversion of the image to CMYK, losing all the original blue colour, is the best possible rendering of the image.

How can I get a CMYK version of this image to print with the kinds of bright colours that are seen in millions of colour magazines all over the world?

With thanks,

Gerry,

I have followed this thread in the AF, did you do the test that Don suggested in his last post?

MH

Yes, I have put a reply there with a link to a low-res version of the image.

"Gerry" wrote in message

"Mike Hyndman" wrote in message

"Gerry" wrote in message

I have a JPG fractal image containing vivid blues, purples and yellow. If I load this into Photoshop CS2 with the Adobe RGB (1998) profile and print it on my Canon Pixma iP5200, I get a pleasing result with bright colours that are similar to what appears on the screen.

But if I follow the proofing procedure described in Chapter 16 of the Adobe ‘Classroom in a book’ about Photoshop CS2, the colours in the image become muddy and unattractive and nothing I can do by way of adjusting hue, saturation etc does anything to bring back the original vivid colours or anything like them. If I print the image out, the colours are just as muddy as they appear on the screen.

Can anyone explain what is going on?

I have posted this question on the Adobe Forum about Photoshop and it has been suggested that I simply have to put up with the muddy result I am getting, with no proper blue. But every colour magazine on sale in newspaper shops, bookstalls etc, demonstrates that it is possible to print in bright colours that are a tolerably good imitation of the kinds of bright colours that one can see on a computer screen.
Since my own inkjet printer can produce a reasonable imitation of the original fractal image as it appears on my computer screen, I simply don’t accept that the muddy colours produced by Photoshop’s conversion of the image to CMYK, losing all the original blue colour, is the best possible rendering of the image.

How can I get a CMYK version of this image to print with the kinds of bright colours that are seen in millions of colour magazines all over the world?

With thanks,

Gerry,

I have followed this thread in the AF, did you do the test that Don suggested in his last post?

MH

Yes, I have put a reply there with a link to a low-res version of the image.

Gerry,

It could do to be a lot bigger. 😉
If I could add that if the image is acceptable in RGB yet muddy in CMYK it would suggest that it could be the CMYK/RGB conversion issue with your printer driver. As has been said elsewhere, you will not get same colour range in CMYK that you see in RGB due to the smaller gamut of the former As you say, there is no problem displaying these CMYK colours in pro publications, but they will not be printed on a Canon Pixma iP5200. Have you tried to print out the file on a friend’s or colleague’s printer to see if there is any difference between your rendition and their’s?
Regards
Mike H

My Canon Pixma iP5200 produces a very acceptable result, printing from the original JPG file or from a RGB Photoshop file.

Clearly, the Canon print driver makes much better substitutions for out-of-gamut colours than does the CMYK model in Photoshop.

"Gerry" wrote in message

My Canon Pixma iP5200 produces a very acceptable result, printing from the original JPG file or from a RGB Photoshop file.

Clearly, the Canon print driver makes much better substitutions for out-of-gamut colours than does the CMYK model in Photoshop.

Gerry,

I think it is the other way around, the problem you are seeing is due to the CMYK-RGB conversion carried out by the printer driver coupled with the fact you are not using CMYK inks or a CMYK printer. Have you tried printing to another printer?

MH
The Canon printers are RGB based. Why don’t you call Canon?