jpeg - Can I get some general info about image file like .png . jpg? -

can , how can based on this link general of photo size in px, size in mb ... , maybe more info ?

you need write that:

1. identifies type of image stream using file signature.
2. reads header information each stream type
3. prints information out.

you need examine stream format specifications each type interested in. jpeg, interested in sos marker , maybe various appn markers used different file formats.