Need help with resizing AdobeRGB images for web

[rain]

Hi

I am trying to resize my photos to display on my web site. I get Adobe RGB from my camera. But some web browsers does not support it. Therefore I want to convert them to sRGB. Now my question is that how do I do that and keep colors at the same time?

My current code is:

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convert in.jpg -resize 1365x2048 -quality 90 -set colorspace sRGB out.jpg

But that ruins my colors. Green goes to yellowish.
Here's sample:



Left is the way it should be (greener) right is what I get with -set colorspace sRGB.

And one more question that I have. I currently use -resize 1365x2048. Can I tell it instead that longest side should be 2048 so that it would automatically figure out that the other side should be 1365?

[glennrp]

Regarding your second question, you can use "-resize 2048" or "-resize 2048x2048"

[glennrp]

Regarding the first question, would you post a link to in.jpg? Also please tell us your ImageMagick version.

[snibgo]

The photos from the camera probably have an embedded AdobeRGB profile. Use "-profile sRGB.icc" to convert the image to sRGB. You can also use an "-intent" setting if you want.

Ideally, don't start from a jpeg.

[rain]

The photos from the camera probably have an embedded AdobeRGB profile. Use "-profile sRGB.icc" to convert the image to sRGB. You can also use an "-intent" setting if you want.

Ideally, don't start from a jpeg.

How do I exactly do that?

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convert in.jpg -resize 300x225 -quality 90 -profile sRGB.icc  out.jpg

But

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 identify -verbose out.jpg 

still shows

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    icc:description: Adobe RGB (1998)
    icc:manufacturer: Adobe RGB (1998)
    icc:model: Adobe RGB (1998)

What -intent exactly does?

would you post a link to in.jpg?

I wont have access to this image till next weekend, but here is another one that behaves the same way:
http://regex.info/i/cs/Momiji-AdobeRGB-yes.jpg

[snibgo]

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convert -verbose Momiji-AdobeRGB-yes.jpg -profile sRGB.icc x.jpg

"identify" shows x.jpg has the sRG profile, instead of AdobeRGB. sRGB.icc is in my current directory. If it wasn't, I would provide the full path to it.

For "-intent", see http://www.imagemagick.org/script/comma ... php#intent

[rain]

But did you try "identify -verbose" ? it still shows it is Adobe RGB. Also when you open it with gimp it tells you that it Adobe RGB and asks you if you want to convert this.

An other notice I made is that when you remove "-verbose" from "identify" then it also thinks that the original file is sRGB (Momiji-AdobeRGB-yes.jpg)

[fmw42]

Works fine for me on IM 6.9.2.5 Q16 Mac OSX

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  identify -verbose Momiji-AdobeRGB-yes.jpg
Properties:
    date:create: 2015-11-01T11:38:29-08:00
    date:modify: 2006-09-17T02:10:46-07:00
    icc:copyright: Copyright 1999 Adobe Systems Incorporated
    icc:description: Adobe RGB (1998)
    icc:manufacturer: Adobe RGB (1998)
    icc:model: Adobe RGB (1998)
    jpeg:colorspace: 2
    jpeg:sampling-factor: 2x2,1x1,1x1
    signature: 60fe692041631c128b7a51ebb3d63fcc79f3717b4cbf4b574b97f36b5d34c707

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convert Momiji-AdobeRGB-yes.jpg -profile /Users/fred/images/profiles/sRGB.icc x.jpg
identify -verbose x.jpg
 Properties:
    date:create: 2015-11-01T11:41:40-08:00
    date:modify: 2015-11-01T11:41:40-08:00
    icc:copyright: sRGB built-in
    icc:description: sRGB built-in
    icc:manufacturer: (lcms internal)
    icc:model: sRGB built-in
    jpeg:colorspace: 2
    jpeg:sampling-factor: 2x2,1x1,1x1
    signature: 5512ae183d209066618cd14092102ae971f2732906341ee1326039d8400ed2b0

[snibgo]

What version IM are you using? What platform? On v6.9.1-6, Windows 8.1, it converts fine.

[rain]

LinuxVersion: ImageMagick 6.6.0-4 2015-05-28 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP

Debian 6.0.7 "squeeze"

[fmw42]

Your version is about 320 versions old. You might consider upgrading.

[rain]

I cant upgrade it. It's on my web hosting company.

[Bonzo]

They should upgrade it for you and if not I would change companies. There are plenty of choices around these days.

Alternatively you can install Imagemagick on your computer. I have it installed and have written a batch file where I drop the image over the icon and it carries out my conversions for me.