mpo

package module

v0.0.1 Latest Latest Go to latest Published: Nov 11, 2018 License: MIT Imports: 8 Imported by: 1

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Repository

github.com/donatj/mpo

Links

Open Source Insights

README ¶

MPO Decoder Library

Simple Go JPEG MPO (Multi Picture Object) Decoder

Install/Update Command Line Tool

go get -u github.com/donatj/mpo/cmd/mpo2img

Usage

mpo2img
usage: mpo2img <mpofile>
  -format string
    	Output format [stereo|red-cyan|cyan-red|red-green|green-red] (default "stereo")
  -help
    	Displays this text
  -outfile string
    	Output filename (default "output.jpg")

WIP

Todo:

Optimization
Add Writer
Add more control over stereo/anaglyph

Documentation ¶

Overview ¶

Package mpo implements an MPO image decoder.

MPO is defined in CIPA DC-007: http://www.cipa.jp/std/documents/e/DC-007_E.pdf.

Index ¶

Constants
Variables
func Decode(r io.Reader) (image.Image, error)
func DecodeConfig(r io.Reader) (image.Config, error)
type MPO
- func DecodeAll(rr io.Reader) (*MPO, error)
- func (m *MPO) ConvertToAnaglyph(ct colorType) (image.Image, error)
- func (m *MPO) ConvertToStereo() image.Image

Constants ¶

View Source

const (
	// RedCyan is Red on left eye, cyan on right
	RedCyan colorType = iota

	// CyanRed is Cyan on left eye, red on right
	CyanRed

	// RedGreen is Red on left eye, green on right
	RedGreen

	// GreenRed is Green on left eye, red on right
	GreenRed
)

Variables ¶

View Source

var ErrInconsistentBounds = errors.New("anaglyph images must be the same size")

ErrInconsistentBounds indicates that not all images within the MPO file were found to be the same size, which is a requirement for the anaglyph conversion.

View Source

var ErrInvalidImageCount = errors.New("anaglph conversion only supports 2 image")

ErrInvalidImageCount indicates that incorrect number of images were found during the anaglyph conversion process.

View Source

var ErrNoImages = errors.New("no images found in mpo image")

ErrNoImages indicates that no images were found in the specified file.

Functions ¶

func Decode ¶

func Decode(r io.Reader) (image.Image, error)

Decode reads a MPO image from r and returns it as an image.Image.

func DecodeConfig ¶

func DecodeConfig(r io.Reader) (image.Config, error)

DecodeConfig returns the color model and dimensions of an MPO image without decoding the entire image.

TODO Optimize this - possibly just faling back to jpeg.DecodeConfig

Types ¶

type MPO ¶

type MPO struct {
	Image []image.Image
}

MPO represents the likely multiple images stored in a MPO file.

func DecodeAll ¶

func DecodeAll(rr io.Reader) (*MPO, error)

DecodeAll reads an MPO image from r and returns the sequential frames

func (*MPO) ConvertToAnaglyph ¶

func (m *MPO) ConvertToAnaglyph(ct colorType) (image.Image, error)

ConvertToAnaglyph converts an MPO to the anaglyph format specified by ct colorType constant

func (*MPO) ConvertToStereo ¶

func (m *MPO) ConvertToStereo() image.Image

ConvertToStereo converts an MPO to a StereoScopic image

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
cmd
mpo2img

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