8 Replies Latest reply: Apr 16, 2012 9:12 PM by K T
Dan-o ™ Level 2 Level 2 (380 points)

Since the iPad 2 and iPad 3 have different color gamuts (i.e. iPad 3 can display a wider range of hues and shades) is there a particular profile that's recommended when we're converting images for use in our books? I used to default to sRGB for the first two generations but wondering if Adobe RGB might be a smarter move for iPad 3 because of its enhanced gamut. Anyone tested this out in practice?


Mac OS X (10.7.3), 14GB RAM, Radeon 5770
  • 1. Re: iPad 2/3 - ICC Profile Recommendations
    K T Level 7 Level 7 (23,700 points)

    AFAIK, Apple has not changed the sRGB recommendation for the new iPad.

     

    Are your images jpgs pngs or both?

  • 2. Re: iPad 2/3 - ICC Profile Recommendations
    Dan-o ™ Level 2 Level 2 (380 points)

    Most will be TIF, some JPEG but that's not really relevant to the profile I convert them to. JPEGs can carry other profiles besides sRGB.

     

    Main thing is whether the recommended profile has changed. Sounds like still sRGB. Which makes sense. Obviously the iPad is not going to compare to a true wide gamut screen (which often cover about 98% of Adobe RGB), so mostly a question of how much closer to that standard are they now vs. iPad 2.

  • 3. Re: iPad 2/3 - ICC Profile Recommendations
    K T Level 7 Level 7 (23,700 points)

    It's a matter of consistency, I think. Things are complicated enuf for devs and authors without adding subtleties to the image spec.

     

    I'll try to speak up if they make anything public for devs.

  • 4. Re: iPad 2/3 - ICC Profile Recommendations
    Dan-o ™ Level 2 Level 2 (380 points)

    Yah I didn't even know if there was a "spec" so much as a recommendation. I think the iPads are all 6 bit screens if i had to guess but hard to be sure with ipad 3. I think sRGB will always be the common denominator with these tablets until there is a big leap in all LCD display tech that takes us well beyond Adobe RGB.

     

    Related question: do you know of any way to "swap out" images connected to the interactive widget after you've applied the labels? I don't mind resetting the views but I don't want ot have to re-type everything as I replace some of these incorrectly tagged images.

  • 5. Re: iPad 2/3 - ICC Profile Recommendations
    K T Level 7 Level 7 (23,700 points)

    LCD hit a plateau years ago. All leaps are in.

     

    R&D has been going towards OLED for nearly a decade.

     

    Ken...(who used to work for Samsung Display Disivion)

  • 6. Re: iPad 2/3 - ICC Profile Recommendations
    K T Level 7 Level 7 (23,700 points)

    Dan-o ™ wrote:

     

    Related question: do you know of any way to "swap out" images connected to the interactive widget after you've applied the labels? I don't mind resetting the views but I don't want ot have to re-type everything as I replace some of these incorrectly tagged images.

    Other than manually, I don't think so, sorry.

  • 7. Re: iPad 2/3 - ICC Profile Recommendations
    Dan-o ™ Level 2 Level 2 (380 points)

    Thanks Ken. It didn't turn out as bad as I thought on my second attempt. I was able to swap the image out. I think as long as the name of the file doesn't change, it just re-scales / fits the image and the only thing you have to re-do is the connection lines and positioning.

     

    Re: LCDs I feel like Eizo has made some pretty decent improvements over the last few years but they probably have hit a wall with LCD tech. Surprised "what's next" hasn't arrived yet. Still not cost-effective to scale / mass-produce?

  • 8. Re: iPad 2/3 - ICC Profile Recommendations
    K T Level 7 Level 7 (23,700 points)

    LCDs are commodized to the point where everyone is afraid to invest in anything R&D wise that won't attract Apple. Apple contracts over the long term, effectively shutting other buyers out unless they can create their own supply base, which these days no one but Apple can afford.

     

    Cost effectiveness now means being able to lock in component prices so that the retail price stays the same from version to version letting margins expand over time as contract and currency leveling kick in.

     

    Apple keeps their ears open for new tech, buying in as early as practical. If something turns up that they feel furthers the product line, it's already staged for scaling up....short term costs may appear daunting, but long term gains make those easy to take...especially when you have the kind of $$$ Apple has laying around