# Dsco

A simple ppm image processor, that use convolution to transform images

## Usage

If `INPUT` is not specified the program will use standard input.

```
Usage:
    dsco [INPUT] -f [edge|blur|sharpen] [-o OUTPUT]

Options:
    -o      output file [default: /dev/stdout] 
    -f      filter to use

            edge:       -1 -1 -1
                        -1  8 -1
                        -1 -1 -1

            sharpen:     0 -1  0
                        -1  5 -1
                         0 -1  0

            blur:        1  2  1
                   1/16  2  4  2
                         1  2  1
```