How do I extract image information from a .png file?

Is there a function like dicomeread for .png files or do I have to convert my .png images to dicom files?

Answer 1

[mano49j]

For reading .dcm files use dicomread and for .png files imread is used..,

[Dalas]

That turns it into a matrix. I need to know patient information that's stored in the file as well.

[Sean de Wolski]

doc dicominfo %dicom
doc imfinfo   %pngs et al.

Answer 2

[Image Analyst]

Yes. It's called imread().

[Dalas]

That turns it into a matrix. I need to know patient information that's stored in the file as well.

[Jan]

@Angus: Are you sure that there are patient data stored in the PNGs? Where? In the comment section or as alternate data stream?