# GO GRAPHICS

## Image Processing

The processing package provides the function `TransformImage` which takes an `Image`, and `Kernel` structs as parameters and returns a pointer to `RGBA` struct.

TransformImage Type Declaration

```
func TransformImage(i image.Image, k *kernels.Kernel) *image.RGBA
```

`Image` and `RGBA` structs are provided by the `image` package from the standard library. `Kernel` on the other hand is supplied by the kernel package of this library.

## Supported Formats

Three formats are supported by the processing package (png, jpeg and jpg). The formats package supplies the function `IsSupportedFormat` which takes a string and returns a boolean value.

## Kernels

Four basic kernels are provided by the kernel package:

#### Example Transformations

### Original Image

<img src="./assets/lenna.png" width="200">

### Sharpen Kernel

<img src="./assets/lenna-sharpen.png" width="200">

### GaussianBlur Kernel

<img src="./assets/lenna-gaussian-blur.png" width="200">

### EdgeDetection Kernel

When applied on an image transformation, the resulting image displays the edges of objects in the image.

<img src="./assets/lenna-edge-detection.png" width="200">

### BoxBlur Kernel

<img src="./assets/lenna-box-blur.png" width="200">

### Custom Kernel

A custom kernel can be used by implementing the Kernel struct from the kernels package. This struct contains the field Kernel which is a three by three matrix of float32 values.


github.com/Drew138/go-graphics

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github.com/Drew138/go-graphics

GO GRAPHICS

Image Processing

Supported Formats

Kernels

Example Transformations

Original Image

Sharpen Kernel

GaussianBlur Kernel

EdgeDetection Kernel

BoxBlur Kernel

Custom Kernel

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