MATLAB Answers

preet

how to read the color image with combined the R,G,B component ?

Asked by preet
on 20 Apr 2013

i have a color image like baby.tif when i use a statement as below

imData=imread('baby.tif');

in imData array R,G,B component store separate

like

imData(:,:,1)% red

:

:

imData(:,:,2) %green

:

:

:

:

imData(:,:,3) % blue

:

:

like this but i need all component combined for single pixel example for first pixel i have value for r,g,b (13,16,17) then second and so on if my image size 60*60 then to represent the color value in 60*180 size in array

  3 Comments

Image Analyst
on 20 Apr 2013

What form do you need them? As I see it, you already have the RGB values in the most useful and convenient form. What do you want that's different than that? Do you want it in this inconvenient form: [r1, g1, b1, r2, g2, b2, r3, g3, b3, r4, g4, b4, .....] where it's just one long interleaved 1 dimensional array? If so, why - what would you do with that?

preet
on 20 Apr 2013

actually i write the color values of 1000 images in a single .txt file. so when i read that txt file its not easy to read sepratly each component for 1000 images

Image Analyst
on 20 Apr 2013

Well . . . . don't do that! You already had the color values in the original format image files.

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1 Answer

Answer by Walter Roberson
on 20 Apr 2013
 Accepted answer
reshape( permute(imData, [1 3 2]), size(imData,1), size(imData,2) * size(imData,3) )

  2 Comments

preet
on 21 Apr 2013

Thanx sir, as usually u r gv me ans.

Image Analyst
on 21 Apr 2013

Actually you've only accepted one other of his answers that he spent time giving you. If what you say is true, then you should go back and accept his other answers also.


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