> For the complete documentation index, see [llms.txt](https://denglj.gitbook.io/essential-go/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://denglj.gitbook.io/essential-go/common-standard-libraries/55-images-png-jpeg-bmp-tiff-webp-vp8-gif.md).

# 55 图片处理(PNG, JPEG, BMP, TIFF, WEBP, VP8, GIF)

- [基本概念](https://denglj.gitbook.io/essential-go/common-standard-libraries/55-images-png-jpeg-bmp-tiff-webp-vp8-gif/basic-concepts.md)
- [加载和保存图片](https://denglj.gitbook.io/essential-go/common-standard-libraries/55-images-png-jpeg-bmp-tiff-webp-vp8-gif/loading-and-saving-image.md)
- [裁剪图片](https://denglj.gitbook.io/essential-go/common-standard-libraries/55-images-png-jpeg-bmp-tiff-webp-vp8-gif/cropping-image.md)
- [将图片由彩色转为灰度](https://denglj.gitbook.io/essential-go/common-standard-libraries/55-images-png-jpeg-bmp-tiff-webp-vp8-gif/convert-color-image-to-grayscale.md)
- [调整图片尺寸](https://denglj.gitbook.io/essential-go/common-standard-libraries/55-images-png-jpeg-bmp-tiff-webp-vp8-gif/resizing-images.md)