Re: Compare image levels?
Re: Compare image levels?
- Subject: Re: Compare image levels?
- From: "Sean McBride" <email@hidden>
- Date: Tue, 27 Nov 2007 10:40:50 -0500
- Organization: Rogue Research
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@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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