https://github.com/sergeymakinen/go-bmp

BMP image decoder and encoder
https://github.com/sergeymakinen/go-bmp

bitmap bmp decoder encoder go golang rle

Last synced: 2 months ago
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BMP image decoder and encoder

• Host: GitHub
• URL: https://github.com/sergeymakinen/go-bmp
• Owner: sergeymakinen
• License: bsd-3-clause
• Created: 2021-11-27T14:48:55.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2023-12-17T09:39:24.000Z (about 1 year ago)
• Last Synced: 2024-10-16T22:55:14.145Z (3 months ago)
• Topics: bitmap, bmp, decoder, encoder, go, golang, rle
• Language: Go
• Homepage:
• Size: 98.6 KB
• Stars: 12
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# bmp

[![tests](https://github.com/sergeymakinen/go-bmp/workflows/tests/badge.svg)](https://github.com/sergeymakinen/go-bmp/actions?query=workflow%3Atests)

[![Go Reference](https://pkg.go.dev/badge/github.com/sergeymakinen/go-bmp.svg)](https://pkg.go.dev/github.com/sergeymakinen/go-bmp)

[![Go Report Card](https://goreportcard.com/badge/github.com/sergeymakinen/go-bmp)](https://goreportcard.com/report/github.com/sergeymakinen/go-bmp)

[![codecov](https://codecov.io/gh/sergeymakinen/go-bmp/branch/main/graph/badge.svg)](https://codecov.io/gh/sergeymakinen/go-bmp)

Package bmp implements a BMP image decoder and encoder.

The BMP specification is at http://www.digicamsoft.com/bmp/bmp.html.

## Supported BMP features

* 1, 2, 4, 8, 16, 24 and 32 bits per pixel

* Top-down images (read-only)

* RLE compression for 4 and 8 BPP images (read-only)

* RGB555 and RGB565 types for 16 BPP images (read-only)

## Installation

Use go get:

```bash

go get github.com/sergeymakinen/go-bmp

```

Then import the package into your own code:

```go

import "github.com/sergeymakinen/go-bmp"

```

## Example

```go

f, _ := os.Open("file.bmp")

img, _ := bmp.Decode(f)

for i := 10; i < 20; i++ {

    img.(draw.Image).Set(i, i, color.NRGBA{

        R: 255,

        G: 0,

        B: 0,

        A: 255,

    })

}

f.Truncate(0)

bmp.Encode(f, img)

f.Close()

```

## License

BSD 3-Clause