Go Filter

Go Filter is a CLI-tool to transform an image to any filter such a grey-scale, inverted colors etc

How to start

# Clone the repository
git clone https://github.com/OrlandoRomo/go-filter.git

# Change directory to go-filter
cd go-filter

# Install dependencies
go mod tidy

# Build project
cd cmd/go-filter && go build .

Move the binary in your local environment

• Linux/Mac: sudo mv go-filter /usr/local/bin

Go Filter manual

To use go-filter open a new terminal in your current operative system and type go-filter and enter.

Commands

The go-filter tool integrates the following commands and subcommands

• filter: filter will apply the given filter name
• filter's flags
  • --output: Path where the final result will be created. By default is the user directory.
• filter's subcommands:

  • list: displays all available filter names

    • args: path of the image as a input

  • gray: applies the gray scale effect

    • args: path of the image as a input

  • negative: applies the negative scale effect

    • args: path of the image as a input

  • red: applies the red scale effect

    • args: path of the image as a input

  • blue: applies the blue scale effect

    • args: path of the image as a input

  • green: applies the green scale effect

    • args: path of the image as a input

  • mirror: applies the mirror effect

    • args: path of the image as a input

  • sepia: applies the sepia effect

    • args: path of the image as a input

  • sketch: applies the sketch effect

    • args: path of the image as a input

Examples

Command	Result
go-filter filter gray $HOME/Desktop/future_nostalgia.jpg
go-filter filter negative $HOME/Desktop/future_nostalgia.jpg
go-filter filter red $HOME/Desktop/future_nostalgia.jpg
go-filter filter blue $HOME/Desktop/future_nostalgia.jpg
go-filter filter green $HOME/Desktop/future_nostalgia.jpg
go-filter filter mirror $HOME/Desktop/future_nostalgia.jpg
go-filter filter sepia $HOME/Desktop/future_nostalgia.jpg
go-filter filter sketch $HOME/Desktop/future_nostalgia.jpg
go-filter filter sharp $HOME/Desktop/future_nostalgia.jpg

TODO

1. Refactor the whole CLI using interfaces
2. Some filters are taking a little bit of time. Need to apply go's concurrency
3. Add more filters
4. Fix some bugs in blur effect