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

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.

Answer 1

[Walter Roberson]

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.

[Muthuraj V]

Thanks walter, but what are the values that are present in "R" are they coefficients or intensity values..?

please answer

Thank you.

[Image Analyst]

Coefficients? Of what? They're intensity values of course.

[Walter Roberson]

Muthuraj, if your question is, "Can imread() be used to retrieve the DCT coefficients of a JPEG image", then the answer is NO.