Hi, >Say, I have one image which may or may not have a >profile attached to it. If the profile is an embedded >one, I know read_icc_profile does the work, but what >if it's not an embedded. Is there any way to find out >what (non-embedded) profile the image has? Is it >possible an image not to have a profile at all? In >that case how do I attach a profile to that image?
If the image have no embedded profile, then you know nothing about which colorspace the image is in. So, at that point, you cannot characterize the image. For such images, you can use a "generic" profile, like sRGB. >jpegicc is using cmsCreate_sRGBProfile if a null input >profile is being passed, can I reasonably assume the >sRGBProfile as the defaut profile if an image doesn't >have one? Yes. sRGB works fine most times. It assumes the image is in same space than average monitor. Regards, Marti. ----- Original Message ----- From: "Zeenath Ahmmad" <[EMAIL PROTECTED]> To: "Marti Maria" <[EMAIL PROTECTED]> Sent: Monday, March 22, 2004 12:03 PM Subject: Re: [Lcms-user] NULL InputProfile Hi Marti Maria, Thanks for the reply. Let me try to explain it a little more. As you said I need both Input profile and Output profile for a color transform. I know what has to be the out put profile. The issue is input profile. Say, I have one image which may or may not have a profile attached to it. If the profile is an embedded one, I know read_icc_profile does the work, but what if it's not an embedded. Is there any way to find out what (non-embedded) profile the image has? Is it possible an image not to have a profile at all? In that case how do I attach a profile to that image? jpegicc is using cmsCreate_sRGBProfile if a null input profile is being passed, can I reasonably assume the sRGBProfile as the defaut profile if an image doesn't have one? Thanks Las ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
