what does this error mean and how to fix it the image i imported was rgb and this error popped ,when its gray it works fine

1 次查看（过去 30 天）

显示更早的评论

jana 2023-1-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1893610-what-does-this-error-mean-and-how-to-fix-it-the-image-i-imported-was-rgb-and-this-error-popped-when

编辑： Jan 2023-1-13

采纳的回答： Jan

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Jan 2023-1-13

编辑：Jan 2023-1-13

Please do not post code as screenshots, but as text. Then it can be used to create an answer with copy&paste.

This is not twitter: No # before the tags. Thanks.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan 2023-1-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1893610-what-does-this-error-mean-and-how-to-fix-it-the-image-i-imported-was-rgb-and-this-error-popped-when#answer_1148140

在 MATLAB Online 中打开

imshow can handle RGB images as [M x N x 3] arrays and gray scale images as [M x N] matrices. The latter can be a logical matrix also as BW image.

In your code a < 100 creates a logical array of the size [M x N x 3], which is no valid input for imshow. Maybe you want:

double(a < 100)
% Or
any(a < 100, 3)
% or
all(a < 100, 3)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

更多回答（0 个）

请先登录，再回答此问题。

类别

Image Processing and Computer Vision Image Processing Toolbox

在 Help Center 和 File Exchange 中查找有关 Image Processing Toolbox 的更多信息

标签

Community Treasure Hunt

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

Translated by