Color is wrong when converting CMYK images to RGB using imagemagick

I had a bunch of images uploaded as cmyk and I needed to convert them to rgb.

I used the line

exec("convert -colorspace RGB " . $myfile . " " . $myfile);

But the color is way off (example, a brownish color looks greenish).

I'm not sure why it's doing 开发者_JAVA技巧this.

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Try using this instead:

-colorspace sRGB