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Profile issue
I usually tag my JPGs in sRGB profile. Yesterday I tried out of
curiosity to "ASSIGN" an image with my monitor profile; the image turned slightly contrastier. I'm a little confused. What would that mean? my monitor is slightly contrastier than it should be? Or should just ignore that finding? regards, J. |
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J,
Assign means assign ... you don't really tag it, you just use it to convert the source (whatever profile was used to open it or that is tagged to it) to the destination (in this case your mon profile). So "assign" simply replaces temporarly the profile that was originally tagged to the image with the one you select . Pege "Jytzel" wrote in message om... I usually tag my JPGs in sRGB profile. Yesterday I tried out of curiosity to "ASSIGN" an image with my monitor profile; the image turned slightly contrastier. I'm a little confused. What would that mean? my monitor is slightly contrastier than it should be? Or should just ignore that finding? regards, J. |
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On 12 Nov 2004 07:50:24 -0800, (Jytzel) wrote:
I usually tag my JPGs in sRGB profile. Yesterday I tried out of curiosity to "ASSIGN" an image with my monitor profile; the image turned slightly contrastier. What would that mean? my monitor is slightly contrastier than it should be? When you have an image in the sadRGB color-space and you then Assign your monitor profile to that image then Photoshop shows the image to you exactly similarly as those programs in your system do that are not color-managed. In other words the RGB codes are sent to the monitor directly without any color-space conversion. In case you see a difference at the moment when you perform this Assign operation it means that your monitor is not in the sadRGB space. Generally the sadRGB space is not good for Web publishing since the the vast majority of the systems on the Web are not in the sadRGB but in the native color space of the CRT monitor that has the gamma 2.5 transfer function. Therefore it is not wise to calibrate the system into gamma 2.2 using the AdobeGamma or other such tool, this has only the effect that in such a system the images appear more bright compared to that how they appear in the Web in genereal. AdobeGamma allows to calibrate the system to gamma 2.5, simply write the value to the gamma box. You can download the nativePC profile from my my site http://www.aim-dtp.net/aim/download/aim_profiles.zip it is far better approximation for Web publishing than the sadRGB. Timo Autiokari http://www.aim-dtp.net |
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