| bytes | Package bytes implements functions for the manipulation of byte slices. |
| errors | Package errors implements functions to manipulate errors. |
| golang.org/x/image/riff | Package riff implements the Resource Interchange File Format, used by media formats such as AVI, WAVE and WEBP. |
| golang.org/x/image/vp8 | Package vp8 implements a decoder for the VP8 lossy image format. |
| golang.org/x/image/vp8l | Package vp8l implements a decoder for the VP8L lossless image format. |
| image | Package image implements a basic 2-D image library. |
| image/color | Package color implements a basic color library. |
| io | Package io provides basic interfaces to I/O primitives. |