Strange color temperature when using iSight

The image generated by my iSight always tends to have a "yellow" tone to it. Can the color temperature be adjusted somewhere? I compared images obtained under the same lighting by colleagues and the color temp with their Macbooks is more blue/white. It is frustrating to always look jaundiced!

MacPatrik wrote:
The image generated by my iSight always tends to have a "yellow" tone to it. Can the color temperature be adjusted somewhere? I compared images obtained under the same lighting by colleagues and the color temp with their Macbooks is more blue/white. It is frustrating to always look jaundiced!
iSight color is set automatically by the app that runs it and is effected by room lighting and even reflections from your monitor, room decor, floor, and wall coverings.
I can suggest two ways to change the color of your images:
(1) Use only one color of light in the room, and adjust it by changing lamps if necessary. See Apple's article at http://support.apple.com/kb/HT3097
This single room light color includes reflections from your monitor. I change my System Preferences > Desktop & Screen Saver > Desktop to use one of the Solid Gray colors rather than the standard screen color that is installed with Mac OS. The solid, neutral nature of gray greatly reduces the yellow color shift that is automatically applied to correct for a blue or purple desktop. The difference is increasingly notable as room light is reduced.
Tungsten light is very orange-yellow. If your only light source is tungsten and you are still seeing an image that is too yellow, try changing the lamp bulb to one of the daylight-colored fluorescent replacement lamps. After testing four different brands and colors, I found one that works in my room.
(2) You can take manual control if you add iGlasses2: http://www.ecamm.com/mac/iglasses/
You can try before you buy to see if it does what you want.
(10.6 users note that iGlasses is NOT yet compatible.)
EZ Jim
Mac Pro Quad Core (Early 2009) 2.93Ghz w/Mac OS X (10.6.1)  MacBook Pro (13 inch, Mid 2009) 2.26GHz (10.6.1)
G5DP1.8GHz (10.5.8) G4 PowerBook 1.67GHz (10.4.11) iBookSE 366MHz (10.3.9) LED Cinema Display External iSight

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    "/opt/SUNWspro/prod/include/CC/Cstd/rw/iterator", line 239: Error, temnotexternc: Template declarations cannot have extern "C" linkage.
    "/opt/SUNWspro/prod/include/CC/Cstd/rw/iterator", line 249: Error, temnotexternc: Template declarations cannot have extern "C" linkage.
    "/opt/SUNWspro/prod/include/CC/Cstd/rw/iterator", line 264: Error, temnotexternc: Template declarations cannot have extern "C" linkage.
    "/opt/SUNWspro/prod/include/CC/Cstd/rw/iterator", line 275: Error, temnotexternc: Template declarations cannot have extern "C" linkage.
    I have no idea what could be causing this. I can find one link to it on this forum: http://forums.sun.com/thread.jspa?messageID=9488983 . But the only answer to that query says it is the same as another bug which appears entirely different, not to mention being very old (while talking about an imminent fix), and being related to a different OS and (I think) a different version of sun studio (express vs. normal?).
    Any ideas? Could it be related to having gcc/g++ on the machine?

    Hi,
    I am also facing the same error while upgrading the Sun compiler description as below
    when I am compiling the cxx file on the system with compiler version (CC: Sun C++ 5.9 SunOS_sparc 2007/05/03) , I am facing the following error:-
    /opt/SUNWspro/bin/CC -dy -misalign -xcode=abs64 -xarch=v9 -D__EXTENSIONS__ -Dsun4_R5=1 -I. -Isun4_R5_v -I/home/as185259/ash_iadraid/ash_get_10/IA/PORT/include -I/home/as185259/ash_iadraid/ash_get_10/IA/WV/WV5.3.6-ncr0302/build/include/sun4_R5_v -I/app/oracle/product/10.2.0/client_1/sqllib/public -I/app/oracle/product/10.2.0/client_1/precomp/public -I/opt/informix/include -DSVR4 -O -g p -pta -c MContext.cxx -o sun4_R5_v/MContext.o || \
    (rm -f sun4_R5_v.d; false)CC: Warning: -xarch=v9 is deprecated, use -m64 to create 64-bit programs
    "/home/as185259/ash_iadraid/ash_get_10/IA/WV/WV5.3.6-ncr0302/build/include/sun4_R5_v/ssmalloc.h", line 97: Error: Only one of a set of overloaded functions can be extern "C".
    "/home/as185259/ash_iadraid/ash_get_10/IA/WV/WV5.3.6-ncr0302/build/include/sun4_R5_v/ssmalloc.h", line 99: Error: Only one of a set of overloaded functions can be extern "C".
    "/home/as185259/ash_iadraid/ash_get_10/IA/WV/WV5.3.6-ncr0302/build/include/sun4_R5_v/ssmalloc.h", line 101: Error: Only one of a set of overloaded functions can be extern "C".
    "/home/as185259/ash_iadraid/ash_get_10/IA/WV/WV5.3.6-ncr0302/build/include/sun4_R5_v/ssmalloc.h", line 102: Error: Only one of a set of overloaded functions can be extern "C".
    4 Error(s) detected.
    The same file with the same compilation command is getting compiled with compiler version CC: Sun WorkShop 6 update 2 C+ 5.3 2001/05/15 .
    Can anyone suggest what should be the resolution:-
    The code for the ssmalloc.h file is as under:-
    #ifndef SSMALLOC_H
    #define SSMALLOCH
    #include <stddef.h>
    #if defined(__sparcv9)
    namespace ssmalloc {
    #endif
    #if defined(__cplusplus)
    extern "C" {
    #endif
    The type for the malloc routine depends on
    the compiler and library that you are using.
    #if defined(hpux) || defined(sun4_R5) || defined(__GNUC_) || defined(_OS2_)
    typedef void MALLOC_PTR;
    #else
    typedef char *MALLOC_PTR;
    #endif
    #if defined(_GNUG_)
    typedef size_t MALLOC_SIZE;
    #else
    typedef unsigned MALLOC_SIZE;
    #endif
    #if defined(sun4) && ! defined(_GNUG_)
    # define FREE_RETURNS int
    # define FREE_RETURN return 0
    #else
    # define FREE_RETURNS void
    # define FREE_RETURN return
    #endif
    // User-callable routines.
    // Note: memalign and valloc are broken in that they do not aling
    // memory on documented boundaries, and thus do not behave as described
    // on the "malloc" manual page. They simply call malloc.
    MALLOC_PTR malloc (MALLOC_SIZE size);
    FREE_RETURNS free (MALLOC_PTR data);
    MALLOC_PTR realloc (MALLOC_PTR data, MALLOC_SIZE size);
    MALLOC_PTR calloc (size_t nelem, size_t elsz);
    MALLOC_PTR valloc (unsigned size);
    MALLOC_PTR memalign (unsigned alignment, unsigned size);
    // This memory allocator supports memory allocation inside signal
    // handlers. For correct operation, the following functions must be
    // called upon entering and exiting signal handlers that allocate
    // memory.
    void ssmalloc_enter_signal_level();
    void ssmalloc_exit_signal_level();
    // Set this variable to not 0 (possibly in the debugger) if you want
    // to get malloc to check memory data structures very carefully as it
    // goes. This may be handy if you are trying to detect a memory
    // trasher.
    // It also causes ssmalloc to abort the program instead of returning
    // zero if memory runs out.
    extern int check_memory_very_carefully;
    #if defined(__cplusplus)
    #endif
    #if defined(__sparcv9)
    } // namespace ssmalloc {
    #endif
    #endif / SSMALLOCH */
    The Machine is
    root@ldg1-> uname -a
    SunOS ldg1 5.10 Generic_138888-03 sun4v sparc SUNW,Sun-Blade-T6320
    Thanks
    Vijay

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