[root@ drawable-hdpi-v4]# convert ic_launcher.jpeg ic_launcher.png

[root@ drawable-hdpi-v4]# file ic_launcher.png

ic_launcher.png: PNG image data,  x , -bit/color RGB, non-interlaced

[root@ drawable-hdpi-v4]# ll ic_launcher.

ic_launcher.jpeg  ic_launcher.png

# rpm -qf /usr/bin/convert

ImageMagick-6.7.8.9-.el7_2.x86_64