FAQ 1.31

How to save image file which apply ICC Profiles ?   Sometimes I'm confused should IPhotoICC save image file which apply ICC profiles, because this kind of image file will look oddly under Applications like Photoshop5, CorelDraw which already use CMS.   As many users suggest, this kind of images  could be useful for web site browsing, especially web album.  Yep!  if your image is calibrated and specify display profile as sRGB, it's reasonable to view these images via Internet browsers (which I assume not apply CMS) which are sRGB appliance. After your images apply icc profiles (display profile better is sRGB) File->Save As Choose bmp format Bmp type dialog popup, set "Save as apply CMS" checkbox on NOTE: Currently, only bmp format support this operation. Since IPhotoICC default will use LCMS, if you want to view this kind of image under IPhotoICC, you have to close CMM first: FILE->ICC preferences->CMM, then Disable color Management I can not guarantee anything on PhotoShop

What is IT8 Target? Here, we are not talking about spec, just give you a feel what IT8 target look like. IT8.7/2 1993(Also ISO 12641) used by Flatbed scanners Manufacture: Kodak Manufacture: Agfa Manufacture: Fuji Film Manufacture: Wolf Faust IT8.7/1 1993(Also ISO 12641) used by  Manufacture: Kodak

Why you need Scanner ICC Profile ?  Let's take Visioneer OneTouch 8100 which has good color  reproduction as example: Before apply profile After apply profile & dest profile is sRGB

Why we provide entry level scanner ICC Profiles ? 1. Most of the legacy scanners wouldn't support any color     criteria, the output is a nightmare to end users. 2. Since HP & Microsoft are using sRGB as the default     scanner output color space, most of the scanners           manufactured from 1999 already support sRGB, Anyway,     it doesn't mean your other devices (like printer, Monitor...)     already support that. Using profiles, you still can choose the     characteristic of your own  output/display devices.

Is profile downloaded from profile center so accurate ?   Not exactly, Because those are generic profiles, they are 100% accurate for the scanners   generating profile, but not for all scanners. Some scanner manufactures will use same   model name, but change internal CCD, Lens, and Frontend chips, this will affect output   result. Anyway, This is still under tolerance, if manufactures keep quality criteria   consistently.   This is the concept of BTN(Better Than Nothing), until you get the Target, you   can do it by yourself.

How to inspect ICC profile contents using IphotoMinusICC ? It's pretty simple! Choose File->ICC Inspect.

How to apply ICC Profile to PhotoShop 5.x?    0. We can choose the platform like Win98, Win2000 and Win ME which        already support CMS. (Note, WIN NT4 does not support this step)    1. Right Click profile name in Windows Explorer    2. Choose item "Install Profile"    3. Running Photoshop 5.0(or Above)    4. Open image scanned from your scanner    5. Choose menu: Image->Mode->Profile to Profile, then         Profile to Profile dialog will popup    6. Choose your scanner profile from "From" listbox    7. Select output from "To" listbox (suggest sRGB)    8. Intent: Perceptual(Images)

How to apply ICC Profile to PhotoShop 6.0?   Seem Photoshop 6 change lot of things about color settings, here is simple   steps telling you how to apply input profile.    0. We can choose the platform like Win98, Win2000, and Win ME which        already support CMS.    1. Right Click profile name in Windows Explorer    2. Choose item "Install Profile"         NOTE, if you use NT4, just copy your input profile to color directory, for example,        c:\winnt\system32\color    3. Running Photoshop 6.x    4. Open image scanned from your scanner    5. Choose menu: Image->Mode->Assign Profile, then         Assign Profile dialog will popup    6. Select third radio buttoom: Profile    7. Choose your scanner profile from listbox     At this time your image "APPLIED" input profile, but  be careful if you save image file    you will see image still un-touched, you need following steps     8. Choose menu: Image->Mode->Convert to Profile, then         Convert to Profile dialog will popup     9. Choose destination profile, the better one is sRGB   10. Intent: Perceptual, Engine: Adobe ACE or Microsoft ICM   11. Press OK

How to  check scanner ICC Profile color faults?    0. Scan IT8 Q60 Target(better in 100DPI or 150 DPI for flatbed scanner, film        should better over 1000 dpi)        in bmp format. Note, Please crop away image areas        which do not belong to IT8 Q60 and save.    1. Open image file    2. Collect image data, Choose menu: Color->IT8_Q60.    3. Choose menu: File->ICC Preferences, a Property sheet dialog        will popup. Choose "Q60 Targets" tab.        Select your target.    4. Choose "CMM" tab        The sequences same as previous topic:)    5. Press OK button.    6. Choose menu: File->ICC Check->Scanner Profile    7. A ICC Checker DialogBox will popup, the left Windows will        list all patches' delta E & delta Chroma, the right windows will        display the comparison in Q60 style.

How to generate ICC Profile by IPhotoMinusICC ?    0. Scan IT8 Q60 Target(better in 100DPI or 150 DPI for flatbed scanner, film        should  better over 1000 dpi)        in bmp or tif format. Note, Please crop away image areas        which do not belong to IT8 Q60 and save.    1. Choose menu: File->ICC Preferences, a Property sheet dialog        will popup. Choose "Q60 Targets" tab.        Select your target.    2. Choose "Profile tags" tab        Fill all needed information.    3. Choose "CMM" tab        The sequences same as previous topic:)    4. Press OK button.    5. Choose menu: File->Open, and choose the scanned Target        bmp file.    6. Choose menu: Color->AutoParsing    7. Congratulation! You generate your own scanner ICC profile. TIPS:     1. you can open the file, "de.txt", to inspect all patches' dE, and         the max dE, min dE, and Average dE.

The cropping positions in profile generation are not so precise?   I have tested 40 more scanners with same target, It's hard to believe that   each scanned target are not same about patch size, it's true!   So there is one method can be used to fine tune the crop positions.   1. edit file de.ini   2. change AnchorX & AnchorY values under [INIT] section, these       mean shift Delta X and Delta Y amounts, then save.   3. execute menu: Color->IT8_Q60 to see whether the cropping is correct.   4. If above are OK, then you can execute the AutoParsing to generate profile. NOTE:   You must select exact target reference file, the parser will depend on   the content of your reference file to distinguish the target is Reflective,   4x5 film, or a 35MM slide.

How to apply ICC Profile to IphotoMinusICC ?    0. Choose platform like Win95(or above).    1. Open image scanned from your scanner    2. Choose menu: File->ICC Preferences, a Property sheet dialog        will popup. Choose "CMM" tab    3. Choose Input, i.e. your scanner icc profile with full path name    4. Choose Display, i.e. the display profile  with full path name        default one will be sRGB,  for example:        c:\windows\system\color\sRGB Color Space Profile.icm    5. Choose Printer, i.e. the printer profile with full path name        default one will be sRGB,  for example:    6. Press OK button.    7. Choose menu: Image->Mode->Profile to Profile.    8. Press OK button.