Re: Compare image levels?

FROM : Sean McBride
DATE : Tue Nov 27 16:40:50 2007

On 11/27/07 11:23 AM, Brendan Wilde said:

>I am trying to find a way to compare images based on colour etc.
>If I am using Photoshop I can use it doing the levels or historyogram
>and then visually compare the information. I am wondering if I can
>somehow do this programmatically?
>
>The idea is compare two images and check if they are the same or 
>similiar
>based on their levels possibly comparing to a range of levels to find 
>a match.
>
>Can anyone give me a starting point?


Like Chris said, this is a complex topic.  However, vImage does have
histogram APIs, such as: vImageHistogramSpecification_ARGB8888().

--
____________________________________________________________
Sean McBride, B. Eng                <email_removed>
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada