imaging

README

imaging

Imaging is a simple image processing package for Go

GetBBox

return the bounding box as a 4-tuple defining the left, upper, right, and lower pixel coordinate.

If the image is completely empty, this method returns (0,0,0,0).

other solution,

• GostScript

$ gs -sDevice=bbox tempCmykPdfFile.pdf|grep BoundingBox
>> return 
 %%BoundingBox: 13 48 199 100

• Python PIL

import Image
im=Image.open("myfile.png")
print im.getbbox()

Installation

$ go get github.com/alitrack/imaging

Usage

var img image.Image
//your decode 
fmt.Println(imaging.GetBBox(img))
//if img==nil will return 0.0.0.0 

License

MIT

Author

Steven Lee(steven#alitrack.com)

Documentation

Index

• func Crop(src image.Image, rect image.Rectangle) (dst image.Image, err error)
• func GetBBox(src image.Image) (x1, y1, x2, y2 int)
• func MergeGrids(images []image.Image, imageCountDX, imageCountDY int) (*image.RGBA, error)

Functions

func Crop

func Crop(src image.Image, rect image.Rectangle) (dst image.Image, err error)

Crop crop image with given rect

func GetBBox

func GetBBox(src image.Image) (x1, y1, x2, y2 int)

GetBBox return the bounding box as a 4-tuple defining the left, upper, right, and lower pixel coordinate. If the image is completely empty, this method returns (0,0,0,0).

func MergeGrids

func MergeGrids(images []image.Image, imageCountDX, imageCountDY int) (*image.RGBA, error)

MergeGrids return merged image