According, to JEE Main brochure you should  have  a  scanned  image  of  your  photograph.

The photograph should be colour or b/w (but clear contrast) with  name of the candidate and date of taking the photograph printed on it.

Candidates with   unclear photograph are liable to be rejected.

Candidates may keep 6-8 identical photographs in reserve for use at the time of entrance examination,Seat Allocation Processand Admission.

You can change your photograph at the time of correction.

Good Luck!!