sudo yum install php-gd

/etc/php.d/20-gd.ini,
gd
gd.jpeg_ignore_warning => 1 => 1

gd

GD Support => enabled
GD Version => bundled (2.1.0 compatible)
FreeType Support => enabled
FreeType Linkage => with freetype
FreeType Version => 2.4.11
GIF Read Support => enabled
GIF Create Support => enabled
JPEG Support => enabled
libJPEG Version => 6b
PNG Support => enabled
libPNG Version => 1.5.13
WBMP Support => enabled
XPM Support => enabled
libXpm Version => 30411
XBM Support => enabled

Directive => Local Value => Master Value
gd.jpeg_ignore_warning => 1 => 1