dimension mismatch

I have a set of code ,for some RGB images my codes works but for some the coed not work i get an error "Subscripted assignment dimension mismatch",can u tell how to solve it

size of image1=183 275 3
size of image2=238 174 3
size of image3= 72 72 3

I get error for 2nd and 3rd image but not for 1st image

i grt error in this line

trunCoarseImg(:,:,:) = coarseImg((n+1):(end-n),(n+1):(end-n)); where n=6

Answer 1

[Image Analyst]

You're specifying 3 dimensions for trunCoarseImg but only two for coarseImg. You can't do that. You'd have to assign that 2D coarseImg image to each color plane in trunCoarseImg one at a time.

[FIR]

my question was for ,my code works for some 3d and dont work for some 3d images

I have given the size of images too

my code works for this image ans its size is

size of image1=183 275 3

ans my code does not work for this image and sizes are

size of image2=238 174 3

size of image3= 72 72 3

[Image Analyst]

I told you why. You can't assign a 2D image to (:,:,:).

[the cyclist]

Maybe it only works on the first image because it IS the first image, and the first time through the code (e.g. in a loop)? Try breakpointing in the code to investigate.

[Michael Liu]

Hi Image Analyst,

How would you assign the 2D image to each color plane one at a time?

[Image Analyst]

To assign the red channel (third index = 1), to some 2D array that has the same lateral dimensions (rows and columns), do this

rgbImage(:,:,1) = your2DImage;