how to plot histogram

6 次查看（过去 30 天）
Elysi Cochin
Elysi Cochin 2022-6-2
评论： Star Strider 2022-6-2
I wanted to plot the histogram of the attached data with number of bins = 42
When i use
figure, imhist(HRGB,42)
I get just 2 vertical lines at 0 and 1.
Instead, how can i get histogram with number of bins 42, or is the below code correct?
h = histogram(HRGB,42);
Or is there a better way to plot the histogram of the attached data?
  3 个评论
显示 1更早的评论
Elysi Cochin
Elysi Cochin 2022-6-2
Appearance of the plot
Star Strider
Star Strider 2022-6-2
If the image is a binary created by imbinarize or im2bw, there are only two values, 0 and 1.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Chunru
Chunru 2022-6-2
Ran in:
load Xdata
% whos
figure; imshow(Xdata);
unique(Xdata(:))'
ans = 1×19
0 1 4 16 17 20 21 22 24 25 26 32 33 36 37 38 40 41 42
imhist assumes Xdata in the range of [0,1]. Therefore you have only two bins for 0 & 1 with your data
figure;
imhist(Xdata, 42)
You can rescale the data:
figure;
imhist(rescale(Xdata), 42);
Or you can use hist
figure
hist(Xdata(:), 42)

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Histograms 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