rgf

package

v0.0.0-...-8bb3b75 Latest Latest Go to latest Published: Jul 28, 2023 License: BSD-3-Clause Imports: 5 Imported by: 0

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Repository

github.com/jakubvanek/lmsformats

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Open Source Insights

Documentation ¶

Overview ¶

Package rgf provides functionality for reading and writing EV3 RGF files.

Index ¶

func Decode(r io.Reader) (image.Image, error)
func Encode(w io.Writer, src image.Image, render draw.Drawer) error
func NewImageProxy(im image.Image, start, size image.Point, hardlimit bool, bt601 bool) image.Image
type ImageProxy

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Encode ¶

func Encode(w io.Writer, src image.Image, render draw.Drawer) error

Encode image 'src' to RGF to writer 'w', while using Drawer 'render' for colorspace conversion. Render can be nil, in which case builtin Floyd-Steinberg dithering drawer will be used.

func NewImageProxy ¶

func NewImageProxy(im image.Image, start, size image.Point, hardlimit bool, bt601 bool) image.Image

Create a new image proxy - im - image to wrap - start - crop source image to start from this point - size - crop source image to this width and height - hardlimit - whether to also crop to the 255x255 RGF limit - bt601 - whether to perform RGB -> BT.601 color conversion

Types ¶

type ImageProxy ¶

type ImageProxy struct {
	Image image.Image
	Crop  image.Rectangle
	BT601 bool
}

Image proxy for cropping and grayscale transformation

func (*ImageProxy) At ¶

func (proxy *ImageProxy) At(x, y int) color.Color

Return original or filtered pixel at a specific point.

func (*ImageProxy) Bounds ¶

func (proxy *ImageProxy) Bounds() image.Rectangle

Return cropped image bounds.

func (*ImageProxy) ColorModel ¶

func (proxy *ImageProxy) ColorModel() color.Model

Return original or filtered color model.

Source Files ¶

View all Source files

rgf.go

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