goimgscaler

README

goimgscaler

Microservice to scale images and create thumbnails

QueryParams

QueryParam	Name	Desc
f	Filename	Image Name
h	Height	Dest Image Height
w	Width	Dest Image Width
m	Method	0 = Resize ; 1 = Fill ; 2 = Fit
a	Anchor	0 = Center ; ...
i	Interpolation	...

Example

http://localhost:8080/?f=demo.jpg&h=100&m=0

Options

Method

Option	Name
0	Resize
1	Fill
2	Fit

Anchor

Option	Name
0	Center
1	TopLeft
2	Top
3	TopRight
4	Left
5	Right
6	BottomLeft
7	Bottom
8	BottomRight

Interpolation Filter

Option	Name
0	NearestNeighbor
1	Box
2	Linear
3	Hermite
4	MitchellNetravali
5	CatmullRom
6	BSpline
7	Gaussian
8	Bartlett
9	Lanczos
10	Hann
11	Hamming
12	Blackman
13	Welch
14	Cosine

Config File

Optional Config File: config.yaml

bind: 127.0.0.1:8080

cache_dir: _cache
image_dir: input

default_filter: 0
default_method: 0
default_anchor: 0

TODO:

• Cors
• Request Domain validation
• Safe image path
• Validate Options