What is the requirement of opinionScores for fitbrisque?

1 次查看（过去 30 天）
John
John 2024-2-23
评论： Walter Roberson 2024-3-2
In the example:
https://www.mathworks.com/help/images/ref/fitbrisque.html#d126e112118
the opinionScores is set to random numbers in the range of [0 100], no problem. However, when modifing this to any identical values in the range [0 100], such as
opinionScores = 50*ones(1,size(imds.Files,1))
it showed error:
model = fitbrisque(imds,opinionScores')
Error using brisqueModel
Expected Alpha to be nonempty.
Error in brisqueModel>validateAlpha (line 298)
validateattributes(Alpha,images.internal.iptnumerictypes,{'nonempty','real', 'column' ...
Error in brisqueModel (line 135)
validateAlpha(Alpha);
Error in brisqueModel.computeBRISQUEModel (line 222)
obj = brisqueModel(svrmdl.Alpha, svrmdl.Bias, svrmdl.SupportVectors, svrmdl.KernelParameters.Scale);
Error in fitbrisque (line 87)
model = brisqueModel.computeBRISQUEModel(options.IMDS, options.SCORES);
How to implement the opinionScores values other than random?
Thanks.

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2024-2-29
It looks to me as if that should only happen if imds is empty.
  6 个评论
显示 4更早的评论
Walter Roberson
Walter Roberson 2024-3-2
If even one of the opinionScores is set differently by at least 0.25 then it works.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Image Segmentation and Analysis 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

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

Start Hunting!

Translated by