Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2013

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Image color ratio

  • To: mathgroup at smc.vnet.net
  • Subject: [mg131834] Re: Image color ratio
  • From: Matthias Odisio <matthias at wolfram.com>
  • Date: Sat, 12 Oct 2013 02:38:46 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • Delivered-to: l-mathgroup@wolfram.com
  • Delivered-to: mathgroup-outx@smc.vnet.net
  • Delivered-to: mathgroup-newsendx@smc.vnet.net
  • References: <20131010205157.9194A6A7E@smc.vnet.net>

Good morning,

On 10/10/13 3:51 PM, KFUPM wrote:
> Dear All
> 
> I have a grey image with darker dots and spots. I want to measure the ratio of the darker spots  to the remaining light gray area.
> 
> 
> I appreciate your help in anticipation.
> 
> 
> Best,
> 
> -HMQ
> 

That sounds straightforward.

You could use ImageLevels and identify the bins corresponding to the
darker spots and to the lighter areas.

Alternatively, you could threshold your image (using Binarize) to
create a mask of the dark spots, and then call ImageLevels to compute
the fraction or ratio you are looking for.

Matthias



  • Prev by Date: ParametricNDSolve for a contact problem
  • Next by Date: Re: Image color ratio
  • Previous by thread: Image color ratio
  • Next by thread: Re: Image color ratio