image processing toolbox

[Luke125]

id like to share RGB photo to 3 parts (in red, in green and in blue) and display each part. I tried to do it like that:
[L1,map1]=imread('picture.bmp');
L1=ind2gray(L1,map1);
L1_RED=L1,:,1);
L1_GREEN=L1,:,2);
L1_BLUE=L1,:,3);
figure;
imshow(L1_RED);
figure;
imshow(L1_GREEN);
figure;
imshow(L1_BLUE);

but i received pictures in gray colours. What should i do to receive colour picture??

 

[IRstuff]

might it have anything to do with the definition of ind2gray?

Description

I = ind2gray(X,map) converts the image X with colormap map to an intensity image I. ind2gray removes the hue and saturation information from the input image while retaining the luminance.

TTFN

 

[Luke125]

I have replaced:

L1_RED=L1,:,1);

with:

L1_RED=L1;
L1_RED,:,2)=L1_RED,:,2)*0;
L1_RED,:,3)=L1_RED,:,3)*0;

It works properly...

I try to create a program about GIF compression- differences between BMP and GIF picture.

I'd be greatful for any conception connected with GIF compression. What could I create (a program) to show features of GIF compression