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is there a software to compare 2 images?

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  #1  
Old 01-06-2013, 11:02 AM
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mantra mantra is offline
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Question is there a software to compare 2 images?

Hi

is there a software to compare 2 images?

for example 2 raw image converted

would like to have a program like this ,that can tell me colors shift r,g,b and different contrast

thanks
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Old 01-06-2013, 11:25 AM
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Re: is there a software to compare 2 images?

Not clear if this is what you are looking for but using apply image in PS will allow you to see differences. Below is an article by Andrew Rodney that describes one method to achieve this:

http://www.digitaldog.net/files/Apply_Image.pdf
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Old 01-06-2013, 05:11 PM
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Re: is there a software to compare 2 images?

What exactly do you want to compare? The Apply Image mentioned shows you visually the differences. But then there are applications like ColorThink Pro that can do that and provide a numeric metric to the differences (using deltaE). Is this something you need hard numbers to evaluate or you just want to visually see if say, two techniques produce a different result?
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Old 01-07-2013, 01:10 PM
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mantra mantra is offline
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Re: is there a software to compare 2 images?

Quote:
Originally Posted by Tony W View Post
Not clear if this is what you are looking for but using apply image in PS will allow you to see differences. Below is an article by Andrew Rodney that describes one method to achieve this:

http://www.digitaldog.net/files/Apply_Image.pdf
thanks!
nice read , really
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Old 01-07-2013, 01:12 PM
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mantra mantra is offline
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Question Re: is there a software to compare 2 images?

Quote:
Originally Posted by andrewrodney View Post
What exactly do you want to compare? The Apply Image mentioned shows you visually the differences. But then there are applications like ColorThink Pro that can do that and provide a numeric metric to the differences (using deltaE). Is this something you need hard numbers to evaluate or you just want to visually see if say, two techniques produce a different result?
i tried to compare the same raw picture converted to jpg and tiff with different raw converters

is there an alternative of colothink pro , i mean a freeware?

thanks
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