Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.image.processing > #4031

Re: How to fin colorspace of an image

Show all headers | View raw

On 09/07/2015 03:01 AM, Tess wrote:
>    Dear All,
>
>          I am trying to do diffrent colorspace conversion on images (rgb2lab,rgb2ntsc..etc) in opencv using c++. After the conversion I just compare my output image with Matlab output image. Comparison is just done by normal vision. but I know that in the case of images normal vision comparison is not accurate. How can I find which colorspace(rgb,ntsc,lab,xyz) my image belong to?. Any standard method or technique for finding the colorspace of a image?
>
> I am totally new in image processing domain.So please give proper guidance in image processing using openCV...
>
> Thanks,
> Tess
>

I don't know anything about openCV, but usually in these situations the 
image would have to have an embedded color profile or tag/id of sorts

if you have it in Lab/XYZ/etc. you can compare the code values in an 
image editor of a pixel of an image, or break it up and do some stats

even in Lab,XYZ,etc there are appearance considerations, like CIECAM02

-- 
Dale
http://www.dalekelly.org

Back to sci.image.processing | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

How to fin colorspace of an image Tess <tesskitz@gmail.com> - 2015-09-07 00:01 -0700
  Re: How to fin colorspace of an image Dale <dale@dalekelly.org> - 2015-09-16 20:30 -0400

csiph-web