How to concatenate GRAYSCALE and RGB images?

11 次查看（过去 30 天）
edusadiq
edusadiq 2019-10-30
评论： DGM 2022-10-26
I'm trying to concatenate a graysacale and rgb image but it shows error.
This is the code
>> A = imread('bird.jpg');
>> B = rgb2gray(A);
>> imshow(A),imshow(B);
>> C = cat(2,A,B);
Error using cat
Dimensions of arrays being concatenated are not consistent.
Can someone help me out?
I want this effect which is shown in given image
Concatenate GRAYSCALE and RGB image in MATLAB.jpg

请先登录，再回答此问题。

采纳的回答

Sai Bhargav Avula
Sai Bhargav Avula 2019-10-30
编辑：Sai Bhargav Avula 2019-10-30
Hi, If just want to stitch them you can try using the montage() function of matlab.
Hope this helps!
  4 个评论
显示 2更早的评论
DGM
DGM 2022-10-26
If the goal is to produce a composite image for further processing (or saving) and you want something with the abilities of montage(), you can also use IPT imtile() instead.

请先登录，再进行评论。

更多回答（1 个）

DGM
DGM 2022-10-26
Ran in:
Alternatively, you can expand the grayscale image. Assuming the images have compatible geometry, they can then be edge-concatenated as normal.
% an RGB image and a mono image
RGB = imread('peppers.png');
I = rgb2gray(RGB);
% expand the single-channel image
Irgb = repmat(I,[1 1 3]);
% concatenate the images
outpict = [Irgb RGB];
imshow(outpict)

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

标签

产品


版本

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by