Cross Reference: /frameworks/native/docs/images/camera2/metadata/android.statistics.lensShadingMap

`Name`	`Date`	`Size`
Up to higher level directory
`blue_shading.png`	05-Oct-2017	`12.7K`
`green_e_shading.png`	05-Oct-2017	`15.1K`
`green_o_shading.png`	05-Oct-2017	`15.5K`
`inv_shading.png`	05-Oct-2017	`71.2K`
`red_shading.png`	05-Oct-2017	`12.5K`