Error , find entropy of 3d volumetric image on GLCM features ?

1 次查看（过去 30 天）
Hla Hla
Hla Hla 2022-8-25
评论： Walter Roberson 2022-8-28
I will find GLCM feature. But error follow as:
b=niftiread("D:\DATASET\Task01_BrainTumour\imagesTr\BRATS_001.nii");
b1=b(:,:,:,1);
cmap = copper(256);
recolored_image = rgb2gray(b1, cmap);
error as following;
Error using rgb2gray
Too many input arguments.

请先登录，再回答此问题。

回答（2 个）

Walter Roberson
Walter Roberson 2022-8-25
rgb2gray() has never supported more than one input, and has never supported recoloring images.
rgb2ind supports passing in a colormap. You could recolor an image by using
ind = rgb2ind(b1, cmap);
recolored_image = ind2rgb(ind, cmap);
Abderrahim. B
Abderrahim. B 2022-8-25
Hi!
b1 is not truecolor image that is a m-by-n-by-3 numeric array. b1 in your case is a m by n by l by 1 (4 D array). use reshape to deal with this.
Hope this helps
  4 个评论
显示 2更早的评论
Hla Hla
Hla Hla 2022-8-25
编辑：Walter Roberson 2022-8-28
Dear sayar, i run above the code.
ind = rgb2ind(b1, cmap);
recolored_image = ind2rgb(ind, cmap);
Error occupy followas:
Error using rgb2ind>parse_inputs (line 145)
RGB image has to be M-by-N-by-3 array.
Error in rgb2ind (line 53)
[RGB,m,dith] = parse_inputs(varargin{:});

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Read, Write, and Modify Image 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by