cvpipe

package module
v0.0.0-...-0f97af3 Latest Latest
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 Go to latest Published: Mar 20, 2024 License: MIT Imports: 4 Imported by: 0

README

cvpipe

cvpipe is a tool for quickly prototyping computer vision filters and operations using OpenCV/GoCV.

Getting Started

Build and run the docker image to quickly get started:

docker build -t cvpipe .

docker run -it --rm \
--mount type=bind,source="$(pwd)/data",target=/go/src/cvpipe/data \
-t cvpipe

Usage

The cvpipe package provides a simple API for chaining together OpenCV operations in Go. The following pseudo-code demonstrates the intention of the package:

pipe := NewPipe()
defer pipe.Close()

result := pipe.
    Add(ResizeOperation(0.5)).
    Add(BlurOperation(5)).
    Add(ThresholdOperation(127)).
    Run(image)
defer result.Close()

// Do something with the result

For up-to-date, working/running examples, see the cmd directory.

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Filter 

type Filter interface {
	Name() string
	Apply(m *PipeMat) *PipeMat
	Close()
}

func NewAdaptiveThreshold 

func NewAdaptiveThreshold(maxValue float32, adaptiveTyp gocv.AdaptiveThresholdType, typ gocv.ThresholdType, blockSize int, c float32) Filter

func NewCanny 

func NewCanny(threshold1, threshold2 float32) Filter

func NewDilate 

func NewDilate(shape gocv.MorphShape, ksize image.Point) Filter

func NewErode 

func NewErode(shape gocv.MorphShape, ksize image.Point) Filter

func NewGaussianBlur 

func NewGaussianBlur(ksize image.Point, sigmaX, sigmaY float64, typ gocv.BorderType) Filter

func NewLine 

func NewLine(pt1, pt2 image.Point, color color.RGBA, thickness int) Filter

func NewMorphology 

func NewMorphology(op gocv.MorphType, shape gocv.MorphShape, ksize image.Point) Filter

func NewPutText 

func NewPutText(text string, org image.Point, fontFace gocv.HersheyFont, fontScale float64, color color.RGBA, thickness int) Filter

func NewRectangle 

func NewRectangle(r image.Rectangle, c color.RGBA, thickness int) Filter

func NewResize 

func NewResize(sz image.Point, fx, fy float64, interp gocv.InterpolationFlags) Filter

func NewSobel 

func NewSobel(ddepth gocv.MatType, dx, dy, ksize int, scale, delta float64, typ gocv.BorderType) Filter

func NewThreshold 

func NewThreshold(thresh, maxValue float32, typ gocv.ThresholdType) Filter

type FilterOptions 

type FilterOptions struct {
	// Enable saving of this step's result. Takes precedence over Pipe options
	Save *bool
}

type MatOptions 

type MatOptions struct {
	Size *image.Point
	Type *gocv.MatType
}

type Pipe 

type Pipe struct {
	// contains filtered or unexported fields
}

func NewPipe 

func NewPipe(name string, opts PipeOptions) *Pipe

func (*Pipe) Add 

func (p *Pipe) Add(f Filter, opts ...FilterOptions) *Pipe

Add a filter to the pipe. If save is true, the result of this step will be saved to disk.

func (*Pipe) Close 

func (p *Pipe) Close()

func (*Pipe) Run 

func (p *Pipe) Run(m *PipeMat) *PipeMat

Run applies all filters in the pipe to the given PipeMat.

type PipeMat 

type PipeMat struct {
	// contains filtered or unexported fields
}

func NewPipeMat 

func NewPipeMat(mat gocv.Mat) *PipeMat

func NewPipeMatFromOptions 

func NewPipeMatFromOptions(opts MatOptions) (*PipeMat, error)

func (*PipeMat) Close 

func (m *PipeMat) Close()

type PipeOptions 

type PipeOptions struct {
	// Enable saving of intermediate results. Will be overridden by individual step save options.
	Save bool
}

Source Files

View all Source files

Directories

Path Synopsis
cmd
example

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