Large blue pixelated spots on my image

I just opened a low resolution .jpg in ACR CS5 and it is showing up in the main window with large blue pixelated spots over it. What is this?
Thanks.

mediafred wrote:
So what exactly is this telling me? Is it indicating the parts of the image that are so dark that detail is being lost?
Yes...the blue channel is being clipped. The same indicator can also show you highlight clipping if you turn on the indicator for highlights (the other side of the histogram).

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It's completely situational. Without being able to directly compare the "scratch" on the original poster's iPhone with your iPhone, what gaamcc had happen could not be extrapolated to guess what Apple may do in your situation. It will depend entirely on what the Apple technician diagnoses after examining your iPhone. He/she may decide that any damage is strictly cosmetic and didn't have any connection with the problem you're taking your iPhone in for, or he/she may diagnose the problem as stemming from user damage. You'll just have to see when you go to the Apple Store.
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Can image for blue pixels and report pixel x,y coordinates

Hi
I am not sure if I am posting in the right forum so please excuse me.
I have a number of images (100 +) which are 400 pixels by 400 pixels each. On these images I have a number of blue dots which are probababally 2 by 2 pixels each. I want to write a program that will scan an image for me and report the exact point of a blue dot back to me i.e. I want in pixels the x and y coordinates of the blue dots.
Notes
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http://alturl.com/cme7b
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Large blue pixelated spots on my image

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