What do i get when i do c = imread('image.jpeg')

2 次查看（过去 30 天）
Muthuraj V
Muthuraj V 2011-10-24
Hi All,
when we do R= imread('someimage.jpeg')
what will be there in R..?? is it coefficients or intensity values...
can c\some one clarify this..?
Thank you, Raj.

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2011-10-24
For JPEG files, it will be RGB values.
imread() fully decodes the images it reads, and outputs an indexed image if the image was stored as an indexed image, and outputs an RGB image if the image was stored as an RGB image. JPEG images are always stored as RGB images.
  3 个评论
显示 1更早的评论
Image Analyst
Image Analyst 2011-10-24
Coefficients? Of what? They're intensity values of course.
Walter Roberson
Walter Roberson 2011-10-24
Muthuraj, if your question is, "Can imread() be used to retrieve the DCT coefficients of a JPEG image", then the answer is NO.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Convert Image Type 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