Clear Example of "Negative Blacks" for reference, and a doctored image.

Discussion in 'iPod touch' started by Sean Dempsey, Sep 16, 2007.

  1. Sean Dempsey macrumors 68000

    Sean Dempsey

    Joined:
    Aug 7, 2006
    #1
    I took this photo from jmpage2's thread here ( http://forums.macrumors.com/showthread.php?t=355025 )

    I felt his pics showed quite clearly the problem that I (and others) have noticed. At least for my touch. I chose an image that best reflected what I was seeing on my unit as well.

    All I want people to look at is the A and B area on the girls hair. That is a perfect example of the issue. The A area should be black, the B area is supposed to be lighter. As you can see, everything renders pretty normal EXCEPT for the BLACK blacks, which appear LIGHTER than their surroundings.

    This effect can be more or less pronounced depending on the scene you are viewing. I chose this photo because it was a pretty mid-range example.

    Also, I used some tools in photoshop to adjust the image in the bottom a little bit. Was just trying to get the A area darker than the B area.

    Anyways, for anyone confused, or for anyone looking for proof, just look at the A area and the B area. A is black. B is brown. A should be darker. It isn't.
     

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  2. owen-b macrumors 6502a

    Joined:
    Nov 30, 2005
    #2
    Way to go - you've also managed to remove the detail of the hair that was actually lit as well. All that's done is pump more contrast into the image. Why do people confuse loads and loads of contrast with good quality pictures?
     
  3. Sean Dempsey thread starter macrumors 68000

    Sean Dempsey

    Joined:
    Aug 7, 2006
    #3
    You are supposed to be looking at the A and B area. The bottom image is just an EXAMPLE as a NOTED IN THE PICTURE, it's not intended to be a "perfect rendition of what it should look like." I was trying to illustrate that black next to near-black is way off, and that the Black is actually lighter.
     
  4. Arisian macrumors 68000

    Arisian

    Joined:
    Sep 14, 2007
    Location:
    China
    #4
    i understood

    I got it, but apparently he is angry that you have ruined his favorite picture!!!

    Arisian
     
  5. owen-b macrumors 6502a

    Joined:
    Nov 30, 2005
    #5
    Ah, I seeeeee. Well, they now look exactly the same blackness, which is also wrong. I'd have thought simply posting a grab of what the image looks like on a non-borked display would suffice. :p
     

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