thumbnail

Documentation

Overview

Package thumbnail provides a simple interface to thumbnail a JPEG stream and return the thumbnailed version.

Index

• func MakeThumbnail(src io.Reader, dst io.Writer, params ThumbnailParameters) error
• type ThumbnailParameters

Functions

func MakeThumbnail

func MakeThumbnail(src io.Reader, dst io.Writer, params ThumbnailParameters) error

MakeThumbnail makes a thumbnail of a JPEG stream at src and writes it to dst.

Types

type ThumbnailParameters

type ThumbnailParameters struct {
	Width          int     // Target width
	Height         int     // Target height
	Upscale        bool    // Whether to upscale images that are smaller than the target
	ForceAspect    bool    // Whether the source aspect ratio should be preserved
	Quality        int     // JPEG quality (0-99)
	Optimize       bool    // Whether to optimize the JPEG huffman tables
	PrescaleFactor float64 // Controls whether optimized JPEG prescaling is used and how much.
}

ThumbnailParameters configures the thumbnailing process