README
¶
go-image-contour
Opinionated Go package for working with the fogleman/contourmap package.
Documentation
Tools
$> make cli
go build -mod vendor -ldflags="-s -w" -o bin/contour cmd/contour/main.go
go build -mod vendor -ldflags="-s -w" -o bin/contour-svg cmd/contour-svg/main.go
contour
Generate contour data derived from an image and draws the results to a new image.
$> ./bin/contour -h
-n int
The number of iterations used to generate contours. (default 12)
-scale float
The scale of the final output relative to the input image. (default 1)
-source-uri string
A valid gocloud.dev/blob.Bucket URI where images are read from. (default "file:///")
-target-uri string
A valid gocloud.dev/blob.Bucket URI where images are written to. (default "file:///")
-transformation-uri transform.Transformation
Zero or more additional transform.Transformation URIs used to further modify an image after resizing (and before any additional colour profile transformations are performed).
For example:
$> ./bin/contour -n 3 fixtures/tokyo.jpg
Will transform this:
In to this:
contour-svg
Generate contour data derived from an image and write the results as SVG path elements to a new file.
$> ./bin/contour-svg -h
-n int
The number of iterations used to generate contours. (default 12)
-scale float
The scale of the final output relative to the input image. (default 1)
-source-uri string
A valid gocloud.dev/blob.Bucket URI where images are read from. (default "file:///")
-target-uri string
A valid gocloud.dev/blob.Bucket URI where images are written to. (default "file:///")
-transformation-uri transform.Transformation
Zero or more additional transform.Transformation URIs used to further modify an image after resizing (and before any additional colour profile transformations are performed).
See also
Documentation
¶
Index ¶
- func ContourImage(ctx context.Context, im image.Image, n int, scale float64) (image.Image, error)
- func ContourImageSVG(ctx context.Context, wr io.Writer, im image.Image, n int, scale float64) error
- func NewContourTransformation(ctx context.Context, uri string) (transform.Transformation, error)
- type ContourTransformation
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func ContourImage ¶
ContourImageSVG generate contour data derived from 'im' and draws it to a new `image.Image` instances. The scale and number of contours is adjusted relative to the 'scale' and 'n' values respectively.
func ContourImageSVG ¶
ContourImageSVG generate contour data derived from 'im' and writes to 'wr' as SVG data. The scale and number of contours is adjusted relative to the 'scale' and 'n' values respectively.
func NewContourTransformation ¶
NewContourWriter returns a new `ContourTransformation` instance configure by 'uri' in the form of:
contour://?n={N}&scale={SCALE}
Types ¶
type ContourTransformation ¶
type ContourTransformation struct {
transform.Transformation
// contains filtered or unexported fields
}
ContourTransformation is a struct that implements the `Transformation` interface for replacing the contents of an image with contours derived from its pixel values.
Source Files
Directories
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Package app for running a base image applications that can be imported alongside custom `transform.Transformation` and `gocloud.dev/blob` packages.
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Package app for running a base image applications that can be imported alongside custom `transform.Transformation` and `gocloud.dev/blob` packages. |
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cmd
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